Where to cut the LED strip
How to cut correctly
Each Led strip has many short blocks on which the number of chips and resistors is set, depending on the model. LEDs are transparent or white, current limiters are black. There is usually a mark between the blocks (dashed line and the image of scissors) along which the strip can be cut.
Attention! If there are no marks on the front side, inspect the wrong side.
On a thin strip, it is more convenient to make a cut with sharp scissors. An exception is boards installed in a silicone tube. You need to cut off between the two contact pads. When offset, it is difficult to solder wires to connect to other lengths or power supply.
On the LED strip, every 50 cm there are joints in which the individual blocks are overlapped. It is not advisable to cut the tape in these places (the contact pads are too small). If it is nevertheless necessary to cut off, the scissors must be replaced with a soldering iron (unsolder the joint).
Cutting diode tape for repair
If one diode fails during operation, the whole block ceases to glow. If the strip is 12 V, 3 chips go out, in the LED strip for 220 V. 0.5-2 meters. The light source can be restored by properly cutting off the faulty unit and installing a new one. You need to cut off along the lines located on both sides of the faulty diode.
Attention! To connect a new block, you can use special mounting elements or soldering.
The use of connectors makes it possible to carry out repairs without dismantling. Soldering requires a 25 W soldering iron and a wire with a cross section of 0.5 m 2. You cannot use acid, the wires must be fixed with a heat shrink tube.
How to properly cut an LED strip: regular, unmarked, with waterproofing
The LED board is made of pieces that can be used as independent light sources. When connecting, it is important to know how to cut the LED strip if the entire product does not fit the installation site. For this, there are most often marks on the board, the length of the segments depends on the model. You can cut the source to the required length with scissors or a sharp knife.
How to connect pieces of LED strip
LED strips with various designs are increasingly used in lighting and backlighting systems. In addition to the problem of how to cut off, self-assembly requires a solution to the connection problem. The most reliable way is soldering, but not everyone has a soldering iron, not everyone knows how to handle it. Most are looking for a more affordable and simpler method. Most commonly used 2, 4 and 5 pin connectors.
Important! Models for 12 and 24 V strips are not suitable for 220 V products.
Advantages of using connectors (compared to soldering):
- low cost;
- easy installation;
- eliminating the need to buy a soldering iron, solder and flux.
The disadvantages include:
- the inability to use if necessary in a large current for LED chips;
- instability to oxidation;
- use for the manufacture of non-heat-resistant plastic.
The main criterion for choosing connecting elements is the width of the flexible board. For example, SMD 5050 models will not fit SMD 3528 products.
According to the connection method, the connectors are divided into:
- with a latch;
When connecting, slide the plate into the clamping connector and insert the strip until it stops. Contact is made after the plate is slid into place. The advantages of such a connector are small dimensions in height and width. The disadvantage is the inability to see the density and reliability of the contact.
Models with a latch solve this problem, although they also have disadvantages:
- connector pads do not always fit snugly enough to the board contacts;
- at high power, the contacts melt;
- for products with high current cannot be used.
The most advanced piercing connectors, on one side of which there are contacts for tape (for connecting to power), on the other for wires. Models available for open and insulated boards. When connecting the segments, the end of the segment is inserted into the connector; there is a cover or transparent plastic for pressing. The pins pierce the board to form a secure contact. You cannot pull out the strip, the state of the contacts is visible through the cover.
Important! Regardless of the type of connector, the board contacts must be cleaned to a shine. When connecting the segments, it is important not to mix up the polarity.
Common mistakes when using connectors:
- varnish on contact pads;
- bent connector leg;
- wrong bandwidth;
- tape is not pushed in all the way.
If the product is waterproofed, you need to remove the silicone above the contact pads and the tape from the back.
Such a tape enters the connector hard, since the silicone on the sides and glue on the reverse side interfere.
The connector cannot be closed if the contact pad is too close to the chips. In such a situation, individual blocks from the tape can be cut off not along the dotted mowing line, but leaving 2 contacts. But one segment will have to be thrown away.
How to properly cut a diode tape with waterproofing
To shorten the LED board with waterproofing, the silicone must be peeled off with a knife. This must be done carefully so as not to damage diodes and other circuit elements.
Coated with silicone
Silicone coated strips may not be marked on the front surface. Installation diagram of LED chips and tracks is located on the back side.
Silicone can be applied to one or both sides of the board. Since the design of the LED strip is the same as the standard one, after removing the silicone, the blocks can be cut with a knife (scissors can damage the contact pads).
- outline the place of the cut;
- remove silicone;
- cut off the required number of blocks;
- prepare the ends for installing the connector or soldering.
After connecting the segments, it is necessary to isolate the areas of the contact pads.
LED strip 220 volts
LED strips for 220 volts are made from SMD 3528, 2835, 3014, 5050, 5630 LEDs and are of several types, differing in the chip installation scheme. The main difference from 220 V products is the cutting rate of 0.5, 1 or 2 meters. The number of diodes in one segment varies between 30-120 pieces. You can cut a piece from such a tape with scissors along the dotted lines.
VLUU L100, M100 / Samsung L100, M100
How to properly cut a color (RGB) LED strip?
With RGB tape, the separation process is somewhat different. The device is also divided into parts, but each of the parts has several contact-type pads.
Under this condition, it is extremely important that the color channel that has been cut is connected to the site of the same name so that the color that is intended is lit. Each color has its own immediate parameters, if violated, extremely negative consequences can arise.
LED strip device
Today, the LED type strip is a printed circuit board that is reunited with a thin elastic type base. On one side of this tape, limiting resistors are applied, which allows you to connect this product to a power source or another device. It is also worth noting that the product has contacts to which, if necessary, you can solder connecting wires. If you look closely, you will notice that through three different elements there are dashes that are located across the product. This is precisely the mark along which the separation of the tape is possible.
There are tapes that are self-adhesive and with the help of them even a high school student will be able to do the editing. In this case, self-tapping screws or any other reinforcing materials are not needed for installation, it can firmly gain a foothold due to its foundation.
Cutting LED Strips
Why cut the tape?
There are many situations in which you will need to cut the tape. For example, a person wants to install a backlight for his keyboard, but there is no ribbon of the required size. Standard meter tape is cut into pieces that you need in size and then you can easily use it.
How to cut a regular 12V LED strip?
LED-type strips belong to the so-called led devices. At its core, this system has an exclusively electrical circuit. The 12V tape is not only flexible but also elastic. It, like other analogs, consists of separate segments, which, as a rule, include three LEDs. You can verify this fact yourself by removing a certain part from the tape and take a closer look. Along the backlight between the individual segments, the voltage is distributed along the tape.
Due to the fact that the coating has a thin layer, the tape can be cut, clearly controlling where the line is. This is done simply with the use of a clerical knife. If, when cutting a product of this type, you break the rules and do it not along the correct mowing line, this will lead to the fact that one of the parties will stop working.
When producing such belts, the manufacturer himself clearly distributes the mowing line with a dotted line, where it is necessary to cut.
How to properly cut a diode tape with waterproofing?
If there is no marking
There are also manufacturers who do not put special marks on the surface of the tape. But even so, there is a way out. Regardless of the marking, there are fields between the specific LEDs, which indicate the place for the cut. There are exceptions on some tape samples and the location of the cutting pins is shown there.
How to cut correctly?
The main thing to remember is that it is advisable to cut the tape only through three LEDs. In this case, this distance is from 5 to 10 cm, it all depends on the type of the tape itself. In order not to spoil the tape and to carry out cutting in the most correct way, it is necessary to use only sharp scissors. The scissors should only be guided along the mowing line on the belt. Otherwise, you will ruin the device.
Regardless of the type of tape, there are segments in the structure, which include three LEDs each. All these elements contain resistors, the number of which directly depends on how many crystals are in the LED.
For example, SMD 3528 LED contains one crystal. Thus, one resistor will be sufficient for each individual section. According to the standard, each individual element contains three LEDs of an independent type. Such elements are capable of being individually connected to a resistor. It is important to know that pads can be in different quantities from two to five or six. In this case, two wires will be enough for a positive power supply to the structure, but some specialists connect a battery to each LED.
Cutting LED strip for repair
It should be understood that mechanical damage can occur even during tape installation. For example, due to its excessive bending. It is important to know that the maximum radius to which this tape can be bent is five centimeters, no more. If you want to wrap a small object with this tape, then the likelihood of a long service life of this tape is not high.
It should be noted that faults of this type can be easily and simply eliminated. In this case, the part that has stopped doing work is cut out. Next, we select a segment of the same parameter and, using the connector, set everything in its place. If soldering is possible, then the connection is better done in this way.
But this type of repair has its own immediate nuances. For example, if the breakage is located in a place where the cord is too clearly visible. In this case, you need to have a cord, the length of which will allow you to hide such moments.
We solder in the place of the cut “by scissors”
It will not be difficult to solder or connect the LED strip with a connector (without soldering), cut using “scissors”. To do this, it is enough to follow a simple algorithm:
- Clean the contact pads (conductors) of the LED strip with a knife and irradiate with a soldering iron.
- If two tapes are being soldered, then clean the contacts of the second one. If soldering is carried out to the power supply using wires, then they also need to be carefully cleaned and irradiated.
- Using a low-power soldering iron 20-40 W, apply solder to the parts to be joined.
- Solder the parts to be connected together using wires or end-to-end. For beginners, I recommend the second approach. simple and reliable!
- Check the quality of the soldering (how to do this is described below in the article)
- Insulate with electrical tape and heat shrink.
The third hand in action
For reference, it is worth noting, depending on the type of LED strip, it has a different number and name of conductors. Color RGB tape: “R”, “G”, “B”, “”. Single color: “”, “-“.
You need to solder together only the ones of the same name, for example, plus with a plus, R to R!
Where to solder
An LED strip consists of a flexible strip-like board, groups of LEDs and conductors connecting these groups. Hence it follows that it can be divided into pieces only in the places of joining of groups. These places are marked with a special line and a scissors symbol, it is in them that the LED strip is cut into pieces.
What is needed for soldering
Directly, before starting soldering, you need to stock up on all the necessary materials and tools. The most important thing is, of course, a soldering iron. The choice of a soldering iron for an LED strip should be taken very seriously. Too weak. will not allow high-quality soldering of contacts. Too powerful, on the contrary, will melt them.
The ideal option is a soldering station. It allows you to adjust the soldering temperature, select the tip of the desired diameter. If you have a station like this, then that’s good. It is not worth buying it specially for this task, tk. you can do with an ordinary soldering iron.
The optimum power ranges from 20 to 40 watts. This is enough to make a high-quality connection of parts.
Any solder that you have in your stock is used. You can also use steam: rosin, tin. There are no restrictions on this.
It is very convenient to use the universal mounting holder. third hand. The fixture is very helpful in the soldering process. Allows you to clamp the LED strip and calmly solder everything you need to it. But, if there is no such device in the house, do not despair, you can do without it, but you will have to suffer a little.
Let’s make a list of what we need:
- Soldering iron 20-40 W or soldering station.
- Universal mounting holder (if possible).
- Knife (for cleaning contacts).
- Insulating tape (for insulating contacts after soldering) or heat shrinking (heat shrink tubing) with a diameter of 10 mm.
- Copper wires cross-section 0.5-0.75 mm, stranded (needed for connection).
Cooking a soldering iron
The soldering iron in our business is the main tool. The result of the soldering depends on the quality of its manufacture and preparation for work. Before starting, I recommend cleaning the soldering iron tip from burning with a file. Be sure to warm up to operating temperature and tin the sting.
Do not overheat the soldering iron. During operation, it is necessary to disconnect it from the power supply for 5 minutes, every 15-20 minutes of operation.
How to properly solder an LED strip?
Often, when installing an LED strip, it becomes necessary to connect the pieces to each other or to the wires of the power supply. There are several main ways: connector, soldering. The latter approach requires more time and skills in working with a soldering iron, but it is considered the most reliable. Because not everyone knows how to solder and are faced with this for the first time, in this article we will analyze in detail how to solder an LED strip, what materials are needed, which soldering iron is better to use and many other important issues of soldering.
- What is needed for soldering
- Cooking a soldering iron
- Where to solder
- We solder in the place of the cut “by scissors”
- We solder in the wrong place of the cut
We solder in the wrong place of the cut
What if the incision is made elsewhere? The tape cannot be connected with a connector, but you should not throw it out either, soldering will come to the rescue in this case. Let’s figure out how to solder the LED strip in this case.
- Strip the tracks of the LED strip itself so that the contact tracks running inside the LED strip are visible.
- Strip the second part of the tape.
- Using a soldering iron and solder, apply solder to the contact tracks of both tape segments.
- There are two options here. Solder the LED strips together using pieces of wires or just butt to each other. The first method is easier. I recommend it to beginners.
- Check the quality of the soldering.
- Insulate the contact pads with heat shrink or tape.
Example of insulation with electrical tape
Upon completion of the work, it is worth checking the quality of the soldering of the LED strip. To do this, you need to move the wires, pull the connected places to break with little effort. If, with all this, the adhesion site does not undergo deformation, then you did everything right.
To consolidate the information received, we recommend watching an interesting video, the author of which shows by example everything that we have told. An interesting moment is demonstrated starting from the 5th minute of the video. close-up soldering.
Summing up, we conclude that soldering an LED strip is a simple process that does not require any expensive tools and serious skills. For people who know how to solder, this process will not raise questions at all, but for those who hold a soldering iron in their hands for the first time, there will be a lot to learn. We wish you success in this not tricky and interesting process. If you have any questions, write in the comments, we will answer.
RGB color tape
The RGB LED strip is designed in the same way as the standard one. The only significant difference is 4 conductive strips instead of 2. On a standard low- or high-voltage filament, they are marked with and., and on RGB. with R, G, B. The cutting procedure is the same: with scissors on strictly marked lines. There is also an RGBW LED string of 5 conductive strips and light bulbs of different colors:
Important. To leave only the colors of the LEDs that you need, pay attention to which contact pad the color channel is connected to.
Why is it needed
There are two types of LED filaments with increased water resistance:
- with silicone coating;
- placed in a silicone tube.
For the first type (with an IP54 protection class), the cutting procedure is no different from the same actions with a standard tape. Structurally, they are identical, therefore, they are cut using the same methods. The catch is that the silicone coating can interfere with making a clear cut in the middle of the pad. It is best to use a sharp knife instead of scissors.
A waterproof LED strip placed in a silicone tube (protection class IP68) is cut like this:
- Cut the silicone coating in the right place with a sharp stationery knife.
- The tape itself can be cut with both a knife and scissors.
- Both ends of the resulting trim must be carefully cut with a knife in order to subsequently connect the connector or solder.
Sometimes, during the installation of the LED filament, you can inadvertently damage it. In the end, this thing is quite fragile, and sometimes you have to bend it strongly. Fortunately, this is not a “death sentence” for LED strip, such faults are easily eliminated. It is necessary to cut off the part that is out of order and measure its exact length. Then a new strip fragment is taken, installed in place of the old one using a connector. The best way to connect these two pieces is to use a soldering iron. If the adhesion is very noticeable, this area (or the entire tape at once) can be isolated.
Advice. To prevent the LED strip from breaking down during installation, you do not need to bend it to a radius of more than 5 cm, wrap it around objects, weave shapes, knots.
On the 12 V LED filament between each group of 3 lights, the mowing line of the cut is indicated.
This tape has a thin coating that allows you to use a regular office knife or scissors. The main thing is accuracy in work. The tape is cut strictly along the dotted lines, otherwise some of the diodes will fail, and such a luminous device will only have to be thrown out.
How the LED strip is cut
Now about how to properly cut LED strips of different voltages and types.
Where to cut
Before proceeding with cutting the LED strip, it is important to understand: the luminous thread can be shortened only along specially marked lines. conductive strips. Structurally, they are made so that they are located between the contact pads of the diodes. Accordingly, there is no threat of damage to the LED strip. Cutting in the wrong place is almost guaranteed to damage some of the diodes. If the tape is connected to the network, a short circuit may even occur or the power supply will burn out. Along the low and high voltage tapes, 2 conductive strips are applied, along the RGB. 4.
How to cut an LED strip
This article explains how to properly cut an LED strip. Depending on the voltage, variety, model of the luminous strip, a different cutting method may be required. Special designations and marks will help with this, but even a tape without marking can be easily cut into fragments of the desired size.
- Why is it needed
- Where to cut
- What incision steps are encountered
- How the LED strip is cut
- 12 volts
- 220 volt
- RGB color tape
- Waterproofing tape
How to cut an LED strip into pieces
To cut off an LED strip, you just need to have sharp scissors and know where to cut. Everyone has scissors, but not everyone knows where to cut, let’s figure it out.
How to Cut and Connect LED Light Strips.
There are low-voltage. 12, 24, 36V and high-voltage LED strips. 220V on the market. On the first, there are marked mowing lines, along which the cut should be made. They are presented in the form of dashed lines with the applied designation. scissors. The principle of high voltage cut is different, they do not have special engraving.
In any case, the cut must be made between copper conductors. When making a cut, you provide each part of the LED row with a pair of connecting pads.
To work you will need:
- Stationery knife or sharp scissors.
- How to cut a 12V LED strip?
- How to cut a 220 volt LED strip?
- How to connect a cut LED strip?
How to connect a cut LED strip?
If you have two segments, you can connect together without much effort. There are two ways to splice led backlight:
- Applications of led connector.
In the first case, you can connect individual segments to each other through additional wires, or by directly soldering the contact pads of each of the segments. Consider a wireless splice.
Before applying rosin to the contacts, make sure that they are not oxidized.
Rosin can be applied to contact pads that have not been oxidized. In this case, both the platform on which the LEDs are located and the surface under the protective film applied to the back of the tape must be able to process. For high-quality splicing of segments, the thickness of the solder should be at least 3 mm on each segment of the backlight.
The total length of the spliced tape should not exceed 5 meters.
The input voltage is calculated by the manufacturer only for the illumination of limited parameters. Its value will decrease with the formation of printed paths of greater length towards the end of the tape.
This will result in the LEDs at the end of the backlight being less bright than those closer to the power source.
The simplest connection method is to use a special connector. To attach an additional segment, the following sequence of actions should be performed:
- Open the cover of the device.
- Connect the backlight contacts, observing the polarity.
- Close the cover of the junction box.
How to cut a 12V LED strip?
LED strips, like other LED devices, have an electrical circuit. At the same time, low-voltage backlighting differs in design from high-voltage backlight. Flexible and elastic 12B tape consists of separate segments. Each of them has 3 LEDs with a number of resistances. R1-R3. You can verify this by removing the protective adhesive film from the tape and applying it to the light.
Voltage is distributed between segments along the backlight.
The thin coating makes it possible to cut the tape into separate sections with a clerical knife or scissors. In this case, the step of separating the segments should be 3 LEDs. If you break it, some of the backlight won’t work.
Most manufacturers indicate the place for the cut with dotted lines.
How to cut a 220 volt LED strip?
Unlike low-voltage, 220V tape has a more rigid sheath. It is possible to divide it into segments only in specially designated areas. In the carrier board for cutting, the manufacturer provides for gaps. conductive buses. Their length can fluctuate in the aisles of 1.5-2 cm. The frequency of special breaks in silicone depends on the manufacturer and can vary in values of 0.5-2 meters. For example, in ecola 220v LED strips, the cutting areas are located at a distance of 1 meter.
Make the cut strictly in the middle of the gap with sharp scissors.
As a result, you get several independent light sources. Between the two buses can be located from 30 to 120 LEDs.
If you make a cut not in the area of the gap, the separated section of the led strip will not work, or a short circuit will occur.
As you can see, having a certain amount of knowledge, it is not difficult to cut an LED strip. For backlighting at home, it is advisable to use led backlighting with a voltage of 12 volts. They do not cause difficulties during installation and are safer than high-voltage ones.
How to cut an LED strip
As you know, an LED strip is a collection of LEDs and resistors mounted on a flexible substrate with copper tracks. It is no secret that it consists of separate segments, each of which can be an independent light source (Fig. 1). Therefore, there is a natural need to cut a single piece of LED strip into smaller pieces for subsequent installation.
Figure 1. LED strip segment
A separate tape segment has copper contact pads on both sides. Monochrome LED strips have two contacts on each side of the segment, RGB strips. four. In the middle of these contact pads, at the junction of two adjacent segments, a thin black stripe is applied to the entire width of the tape (on some types of LED strips, the “scissors” symbol is shown in addition). this is the place for cutting (Fig. 2).
Figure 2. Ribbon pads
However, care must be taken when cutting the tape. Before cutting, it is imperative (!) To measure the length of the cut section of the tape several times. Do not forget that the length of the cut piece will be limited by the contact pads of the first and last segments. In other words, the length of the cut section of the tape will be a multiple of the length of one segment. After determining the length of the section to be cut, you must put a mark on the contact pads of the tape. It is convenient to use a thin black marker for this (Fig. 3). And only after that you should proceed to the direct cutting of the tape.
Figure 3. Measuring the length of the section to be cut
It is most convenient to cut the tape with scissors, because the substrate and copper tracks of the LED strip have a small thickness (Fig. 4). Do not use stationery or other knives to cut the tape. using them can damage the contacts of the cut segment. Attention! Use only sharp scissors to avoid damaging the tape.!
Figure 4. Cutting the LED strip
The cut should be made exactly in the middle of the contact pad connecting two adjacent tape segments (Fig. 5). If the cut is displaced in any direction, it will be more difficult to solder the connecting wires to the smaller contact pads, or it will become impossible to install the connectors.
Figure 5. Cutting a part of the LED strip along the mowing line of the cut
It is also important to remember that the LED strip consists of individual pieces of 0.5m length. In places of such joints, the tape is welded with an overlap (Fig. 6). It is highly recommended to avoid cutting the tape at the seams, as the contact pads after this cut will be too small. If it is necessary to disconnect the tape at this point, it is recommended to use soldering, i.e. unsolder the joint with a soldering iron. In this case, the contact pads will remain intact.
Figure 6. Place of overlapping tape pieces
Special attention should be paid to cutting different types of LED strips. Thus, cutting the tape without silicone (protection class IP20) is straightforward. Silicone coated tapes (IP54 degree of protection) are slightly more difficult to cut due to the increased tape thickness, however, the operation is performed according to the above recommendations. As for waterproof tapes with a degree of protection IP68, when cutting them, it is worth considering the possibility of displacement of the PVC sheath relative to the tape (Fig. 7).
Figure 7. Cutting of waterproof tape IP68
After cutting the LED strip into pieces, you can proceed to the connection process (soldering, using connectors, etc.).
How to install LED strip
Today, LED strips are one of the most popular options for implementing decorative lighting. Due to their low price, economy, reliability and easy installation, they are in great demand.
In this article, we will look at how to install an LED strip and what points must be observed.
First of all, it is worth noting that LED strips should only be connected via a 12, 24, 36 or 48 V power supply, connecting them to a mains voltage source will lead to the failure of the strip. The power supply must exceed the total power of all LED strips connected to it by 10-20% in terms of power.
Thanks to its flexibility and adhesive backing, the LED strip can be fixed almost anywhere.
Each tape is marked where it can be cut, it cannot be cut in other places.
When installing the LED strip, it is most convenient to first solder the wires to it, which will be connected to the power side, since it is often very inconvenient to solder them after you stick the tape.
When soldering wires to the tape terminals, it is not allowed to overheat the tape (the maximum soldering temperature is 250 degrees), the contact time of the soldering iron with the tape contacts is no more than 10 seconds.
Do not strongly strip the ends of the wires before soldering, this can lead to short circuits. Before sticking the tape, it is necessary to remove dust and other dirt from the surface for good adhesion of the tape.
To protect against external factors, the place of soldering and wires must be insulated, for this it is most convenient to use a heat-shrinkable tube (such a tube, under the influence of heat, shrinks and tightens the place of insulation), “seat” it with a construction hair dryer or a lighter.
It is advisable to irradiate the other ends of the wires or use special tips, thanks to which it is much more convenient to insert them into the connectors of the power supply, it also provides more reliable contact.
After this stage, you can start installing the LED strip. It should be noted that high-power LED strips (with a high density of LEDs and in particular SMD 5050 LED strips) require the use of a special heat-dissipating profile, which helps to remove excess heat from the LEDs.
Also, when gluing, sharp bends should be avoided (bending radius less than 2 cm is unacceptable), this can lead to damage to the tracks and electronic elements.
After pasting the tape, you need to connect it to the power supply. Modern power supplies have screw terminal blocks or screw connectors, which allows you to very quickly connect an LED strip to them.
In case of uneven glow of the tape along the entire length, you should connect power from the used power supply and to the other end of the tape, this will allow you to achieve a more uniform glow of the tape.
You can also use dimmers to adjust the brightness of the light, and in the case of installing a colored tape, an RGB controller must be used, through which the color and shades of the glow are set, as well as various lighting scenarios are implemented.
The dimmer is connected between the power supply and the LED strip.
The RGB controller is also connected between the power supply and the led strip.
If you need to install several LED strips, you can use a parallel connection of the strips or use a separate power supply for each LED strip. In the case of connecting LED strips in series in a chain longer than 5 meters, it is not allowed due to the increased load on the first elements of the mowing line and uneven glow.
It is not allowed to install the LED strip near heat sources, this leads to overheating of the LED crystals and significantly accelerates their degradation.
When installing the LED strip in wet rooms and in the open air, the power supply must be connected through an RCD (residual current device).
Do not use LED strip with damaged insulation.
Protect the tape from mechanical stress and shock.
Foton.ua. great for LED products
General information about led strips
To connect a Led strip to a power source, you need to know some information about what it can be. The product is a printed circuit board with flexible design diodes 5 m long, where 2 types of LEDs are used:
- single-chip (SMD 3028, 3528);
- three-crystal (SMD5050).
The former consist of one crystal of a certain color temperature and glow in one color, the latter. of three (blue, green, red), which can have the same color temperature (monochrome) or different (multi-color RGB products). The advantages of using such light sources are obvious:
- the level of illumination is regulated;
easy to install and build up, because flexibility and glue base allows you to divide into the necessary segments (there are marks on the surface of the tape in the form of a dash-dotted mowing line or special platforms and scissors, which allows you to divide into pieces of the required length);
- environmental friendliness;
- long service life;
- do not require disposal.
LED products are produced with various degrees of protection from IP20 to IP67, which allows the installation of LED strips in premises for various purposes (humid, gas-polluted, dusty) and outdoors. Non-waterproof products with a degree of protection IP20 are most often used in interiors. They are also distinguished by the luminous flux (brightness), measured in Lm or Lm (lumens), as well as by the color temperature, measured in K (kelvin). In the retail network, there are LEDs of daylight (6000 ÷ 6500 K), warm (3000 ÷ 3500 K), neutral (4000 ÷ 4500 K) glow.
The product consists of segments connected in parallel. Each such segment is powered by a voltage of 12 V. The segment includes 3 LEDs and 3 resistors. Each package contains 3 crystals of a semiconductor type of red, blue and green luminescence colors. Crystals of the same color are connected in series using copper conductors. Resistances limit the amount of current that flows through each LED string.
Attention! For RGB tape that changes color, it is necessary to select the desired type of controller, which will adjust the illumination level in accordance with the required parameters.
Installation of LED strips
How to mount the product if the length is less than 5 m or more? What do you need to know? We already know where to cut. All you need is scissors. It is easy to cut, because elastic product.
Important! The cutting step must match the length of the segment.
Now you need to know how to properly connect the pieces of the product. The connection is carried out using soldering. In this case, it is necessary to ensure that the contact pads do not oxidize. It is best to perform the operation immediately after cutting the product. From the side of the LEDs, these pads are covered with a layer of solder, but not from the back. It is also necessary to apply solder from the side of the sticky layer, with which the tape is glued to the surface, removing the protective layer. Then both parts are overlapped with an overlap of at least 3 mm and connected using a heated soldering iron. In addition to the tool for soldering and solder, you will also need rosin. Option of soldering with copper wire Ø 0.8 mm.
How to install LED strip? Very easy. stick to the surface with the sticky side, removing the protective layer.
Features of connecting LED strips
LED strip is a versatile light source and is widely used to illuminate apartments, private houses, industrial and commercial facilities, streets, alleys, parks and shop windows. The advantages of using a popular type of lighting are primarily that they are economical because they are consume a small amount of electrical energy, which saves money when paying for consumed energy. Secondly, with the help of LEDs, a unique design and comfort are created on any object. Currently, lighting without the use of such products is impossible to imagine. Connecting the LED strip is easy to do if you know the nuances of such installation.
Features of connecting LED strip to different sources
The features of connecting an LED strip depend on where it will be connected. It can be connected to 220 V via a 12 or 24 volt power supply, as well as using batteries and rechargeable batteries.
Installation of the LED strip after connecting it to the required length and gluing to the surface ends by connecting to a power source.
A product of standard length (5m) is connected in parallel to the power supply, multicolor. in parallel to the RGB controller, while using a wire with a cross section of up to 0.7 mm2. To connect several sections in parallel, you need a wire with a cross section of 1.5 mm2. How to connect the LED strip to the unit is shown in Figures 2 and 3.
The wires of the plus (red) and minus (black) tape are connected to the plus and minus connectors or the output wires of the power supply. The input of the unit itself is connected to a 220V network (outlet or lighting terminals). The marking of the wires of the power supply is as follows:
- brown. phase;
- yellow or green. ground;
- blue. zero.
You need to know that there is no protective ground wire in plastic power supplies.
Important! In the process of connection, one requirement is to observe the polarity.
How to connect the LED strip to the battery? First of all, it should be noted that such a product must be connected to a 9 V battery of the “Krona” type (short lengths of tape) or 12 V. However, such a product will not work for long, because batteries run out quickly.
LED strips are currently the most demanded light sources. Nice, comfortable and economical. Noteworthy is the fact that such a backlight allows you to save on energy bills, is quickly installed, does not require daily maintenance.