If you burn down your house because you did not insulate your repair properly this is your fault. To repair the light, First find a piece of stranded wire and strip off about 2 inches of insulation. If you have a string of LED lights that are of the non-replaceable type you may think all is lost. However, in the course of use, there are occasional situations in which LED strip does not work. Answer Reply It's these kinds of activities that give scouts a heads up in the adult world which some of them are about to enter. on Step 7. You will need some tools that most people who tinker with electricity will have. If you do not match the voltage properly, it will change the color of the entire string of lights. My voltage detector indicates power right to the last bulb and the next plugged into it works. Now, examine in a darkened room or dark shade. I then unplugged the lights and began the repair. I'm trying to repair the wiring for a string of 3 color changing LED spotlights, made by 'Holiday Home', that got run over by a lawn mower. Never attempt to fix a light strand that is plugged in; you may be electrocuted. As I mentioned earlier the removal of a light will increase the current and LED's do not like high current. There will be a faint (and I mean FAINT) blue glow--a tiny dot--in every good LED. I am working with a 70 light string which consists of two parallel circuits that have 35 lights each in series. The other had far too many bad LED's--far more than I had replacements for. One of the most widely-seen holiday decorations are miniature LED lights, which you can string on trees and bushes, homes and Christmas trees. Christmas lights are a real nuisance to repair. With the faulty LED light removed the light string half that did not work is now working minus 1 light. This can be particularly useful for conveying information in a tight space. I accidentally came across a solution to finding which are bad and which are good LED's in a string. Finish replacing the bulbs and test your work. But you might have it at the far end and loose it as you move towards the plug. I saw a video a while back that said some lights have a third wire, and that wire can be snipped out without any problem. C6 bulbs are strawberry shaped.. C7 and C9 bulbs have the traditional shape you might have grown up with—larger than the strawberry-shaped C6, with the C9 the largest of all. As soon as you find a wire between the lights that no longer has voltage detected the light prior is likely the light that is fault. Question When I was sure of the LED that was faulty I unplugged the lights from the electrical source and then put a sewing pin through the wires going into the LED to bypass the light in question. I measure the current in the light string half that was not faulty and it was 9mA. Drag the tab on the color wheel to change the hue and saturation. Remove the affected bulbs. Bad LED's will have no faint blue dot of light. Keep checking for voltage between the lights. Another factor to consider is the current limit of an LED. Winding on a spool for storage probably disturbed the delicate LED leads. This Trouble Shooting Series is for them. However, taking one light out should not increase the current enough to damage the remaining LED's in same circuit. With the lights plugged in, use the voltage detector to check the live voltage wire between each light, starting at the end that plugs into the wall outlet. Outdoor lights can end up with water in the outer globe! on Step 7. I have been changing colours in LED strings to illuminate a wire angel and all went well until I changed a string to Blue, bulbs started burning out. The correct solution is to reverse the socket. Try to replace a couple of LED light bulbs with the CFL lights. It will take a bit of studying of the string and its plug if it is not a polarized plug. Light Is a Different Color at the End of the Strip: Voltage drop: Split up your strip light run with multiple LED drivers. The brightness of the LED while you test it will also indicate its quality. Now, examine in a darkened room or dark shade. From the first light, in addition to the power in cord, are 3 more wires (like common lamp cord). If you are having issues getting anything to work in your LED installation or your lighting is inconsistent go over this trouble shooting … 2 years ago Flickering of LED lights could be very annoying. By combining the primary colors (red, green, and blue) in a multi-chip LED, a lighting fixture, or any other LED device, and controlling each color’s intensities, an LED light can produce several colors. Inside a bi-color LED light, there are two light-emitting dies, including three leads and a common cathode or anode. Since … (with lots of extra exclamation points). on Step 7. ), Reply For example, LED strip does not light up … LED lights are less expensive to run and last longer than incandescent lights. Let me illuminate the solution. Just to make sure test for voltage between the next set of lights just to make sure. A typical string uses 3 wires and they're all necessary (the hot wire that carries the 120v to the next series circuit and socket at the end of the string, one that daisy chains the bulbs for the series circuit and the return or neutral wire). Replace the LED light bulb. Electricity can kill you if you don't know what you are doing. If you need to cut your LED strips to length, simply use a pair of scissors to cut along the marked line. LED bulbs and headlights can flicker in many situations. What is going wrong? Let me emphasize the words 'faint' and 'tiny' again. Good point. This is what gives the appearance of colorful lights like purple led light bulbs, sharpie light bulbs, and pink led lights for car. If you get lead poisoning from eating the lead solder this is you fault. You don’t have to do anything else; cutting at the cut-points will close the LED tape circuit automatically. (Onboard LED on the motherboard or component) Select the individual LED/component. LED leads, can cause the leads to corrode over their year of storage. If it is the second then start at light 36 for a 70 light string. A little off the subject, but someone mentioned scouting and I thought I'd expound on that just a little bit. Where do these wires connect? Bi-Color and Tri-Color. How to FIX an LED Strip Lighting Controller that Outputs Wrong colour! When you say LED, are you referring to the newest strings of lights out there, or just the lower wattage mini lights that have been available for a long time? The tools needed are: This is assuming that the first half of the light string is not working. You could get electrocuted. 1 year ago, 5 years ago Once you have all the lights replaced, plug the string back in to make sure you got them all. Multicolored lights are usually pretty standard, with only a few choices for colors. Thoughts?? I started with all White LEDs on 8 strings of 35 and replaced some with Yellow and Amber and all was fine, but not the blue. Voltage Detector (see picture for example) Sometimes a dimmer switch is involved, other times the flickering happens due to other technical reasons. The repair options for a pool light that comes on but doesn't change colors depend on the source of the problem. This is called the RGB Color Model. Approximately 30ft are good and bright then about 10ft are dim and then the other 20ft are good again.All the bulbs are working and are very consistent in brightness including the ones that are dimmer.Any ideas on fixing them, would like to fix instead of replacing the whole thing.Thank you, 6 years ago The strings need to be dried before storage. The following is a four step (really three!) STEP 2. A string of lights typically has two parallel circuits and the power is carried through from one end to the other. Put a small sticker on the affected bulbs to make it easier to find them. On my string the voltage between the LED and the common is 3V. It depends upon how you connected the non-polarized plug. For this repair we are actually going to bypass the faulty light. Then check the wire that goes from the first light to second light. But now, thanks to long-lasting LED lights, you can forget what it's like to change a bulb. STEP 1. There are typically two different types of LED bulbs that are … When a mini light shunt fails or a bulb becomes loose, you have to find the faulty bulb the same way. Again, use extra care so that you do not crack or break the socket. Plug in the LED string. Once the old bulb is out, place your replacement bulb carefully in the socket and attach it. If your spouse whacks you with the rolling pin because you destroyed his/her Christmas lights guess what - your fault. Go back to the original strand of lights and find which ones are burned out. Question G12 bulbs are raspberry shaped. They're lower wattage than mini lights which are lower wattage than C7 and C9 incandescent bulbs which get hot to the touch. For example, if you burn yourself with the soldering iron that is your fault. Measuring the current in the light string half with the one light removed the current was 12mA. 8. on Introduction. There should be no voltage detected. Typically if your LED lights simply "don't work" it is not because the products are defective but due to a basic wiring mistake or overlook. Unplug the light strand. At this point I cut the wires going into the faulty LED, put on my heat shrink tube (2 tubes), soldered the wires, and shrunk the tube. LED strips. Let me emphasize the words 'faint' and 'tiny' again. You can harvest the bulbs from this strand to use on your burned-out lights. After making sure the pin was not touching anything conductive I plugged the lights back in and the light string half that did not work before now worked except for the light I bypassed with the pin. When one of the LED's fails the circuit breaks which affect all the other lights (half of them) that are in the same series circuit. She began her career as a Web designer and also specializes in audio/video mixing and design. There are typically two different types of LED bulbs that are used for Christmas lights, and they operate on different voltage levels. :-) (Book available on Amazon. one of these wires is constantly hot but there is no power at the other two wires. LED's do not like a lot of current so besides the LED there is also a current limiting resistor in each light. I've needed to replace 8 LED's in a single string. As its name implies, an RGB LED combines the red, green and blue colors to create a broad range of light in visible colors. Wire Cutters Kate McFarlin is a licensed insurance agent with extensive experience in covering topics related to marketing, small business, personal finance and home improvement. LED Christmas lights last longer and provide more color options than regular lights, but they burn out on occasion. 1 year ago. The plastic socket can be brittle, so exercise caution. LED, Light Emitting Diode as opposed to incandescent mini lights. 2 months ago This week we're going to go over an easy to do LED Remote Quick Fix, should your remote hit a snag. The socket connections are at different heights and the LED leads have been cut to different lengths. Can't one simply put in a "good" led to fix the problem? For someone who went through 2 of 5 semesters of Digital Electronics Tech 10 years ago, I have forgotten just about everything. The following involves working with electricity. Select the item you wish to change LED settings on. Did you make this project? The Voltage detector spec for the ones is see on line are between 50v to 1000v or 12v to 1000v. You can drag the tab up and down on the RGB sliders to change the individual RGB values instead. Wire Strippers. If all of the LED strips colours are working except for just one colour, and this is affecting that colour all along the strip (e.g., the whole length of the Red colour LEDs are not working), then there is either a fault with the soldering of the Red -ve cable onto the strip’s PCB, or else Red cable is faulty from the strip to the receiver, or the connection of the Red cable into the receiver is faulty or disconnected. The hard part is finding the bulb that is burnt out and most people do this by trial and error. If you do follow these instructions then you take full responsibility for getting electrocuted  - which as mentioned previously can kill you - or for any other risks associated with the activity outlined in this set of instructions. The general upper limit for LED's is 20mA so the current level is still reasonable even with the one light removed. The easiest and most affordable way to fix LED Christmas lights is to have another strand available that you will not be using. LED strip decorative lights are widely used, whether it is used to decorate the interior or exterior of the room, or shops, are very practical. As for snipping out a third wire... don't. In most cases, you'll need to remove and repair the light itself, since the fact that the light illuminates indicates that problem doesn't involve your electrical system or wiring. Because LED lights don’t overheat, they greatly reduce your risk of being caught in a Christmas tree-related fire. There's WAY more to scouting than campfires and singing Kym-Ba-Ya (although there's that too). 5 years ago Pick which kind of LED you will need. 5MM (or rice) lights are small but shine brightly at a wide angle. Originally an LED could light up in only one color, but modern variants can display up to six colors with shades in between. To reverse the socket, I cut both wires from the socket, one on each side, about in the middle of their lengths. But don't be too hasty. This will correct load problems and most likely fix the flicker of remaining LEDs. There's an easy way to fix your LED Christmas lights and save money. LED technology is now being integrated right into light fixtures, so you'll never have to install or change a bulb in those fixtures again - because there isn't even a bulb to change! Could the resistance be different in the blue bulbs? While they appear in many modern tech devices, LED lights actually date back more than 50 years. on Step 7. There should be voltage detected at the live wire going into the first light. This will increase the current that goes through the remaining lights because we have eliminated part of the resistance. Thanks!!! Remember to replace bulbs with the same voltage rating, 3.5v for strings with multiples of 35 lights and 2.5v for multiples of 50. In each case, one leg of the LED had broken off (seems like a sucky material design mistake.) Blue, green or clear lights use 3.2 volts, while other colors will use 3.0 volts. Use a secondary string of lights as replacement bulbs. I think so, but, check it out and comment. 1 year ago. Soldering the Wires Directly to the Strip Choose a well-ventilated area to do the soldering. Pick which kind of LED you will need. If not discard the light. So if you are not qualified to repair devices that require electricity then don't attempt the following repair. How to Fix Discoloration and Distortion on a Computer Screen Power off the monitor, wait 15 seconds and then power it back on. How can I use the detector? on Step 7. It doesn't matter if it or the section in question lights or not. Reply For me, no-blue-glow correlated with LED's that were bad. Heat Shrink Tube It doesn't matter if it or the section in question lights or not. A lot of life's lessons are taught in scouting, and practical things like how to fix a broken wire or how to do one of those McGyver projects where you make do with what you've got to make or do something practical. Thanks! If you find a burned out light, you don't have to replace the whole strand. Although the same troubleshooting method can be used for either LED or mini incandescent, since they use series circuits. Make sure your strips are plugged in the correct way. Question Soldering Iron The second and third light in the string remain connected and in tact but the first light, where the input power enters the string, was severed as was the female outlet used to connect adjoining lights. The fist step is to find the LED that is no longer working. So it sounds like you have at least two bad bulbs in the string that doesn't work (at least one in each parallel/half) of the string, and at least one bad bulb in the half of the other string. My strings were two quality strings of 100 lights purchased at Costco, and they made it through last season. Max of 16 feet per driver: Light Is a Different Color at the End of the Strip (Hardwire) Crossed wires: Check for correct wiring. LED strips come in a very wide variety of sizes, densities and color quality, but what they all have in common is that at some point, you may run into some difficulty getting them to work.Through our many years of working with LED strips, we've put together some of the most common causes of LED strip problems and what you can do to solve them. OR does the string of leds and their resistors self rectify the ac line current when the string is working, but when open the ac is detectable? They Come In All Different Shapes And Sizes You can get different LED Christmas lights for each part of your house. As an example, if there is voltage on the wire between light 6 and light 7, but there is not voltage between light 7 and light 8, then light 7 is likely the problem. Pull out the first light that is marked with tape from the light fixture. With the polarities right, we can turn the lights on. Let me know if this proves out to you. Light when current flows in forward bias direction and not in reverse. There will be a faint (and I mean FAINT) blue glow--a tiny dot--in every good LED. So using a "light fixer" for the original mini lights, remove the bulb from the socket and touch the leads to the light tester. If this proves out, all that I humbly ask is that it forever be known as The Allen Whitlock Method. Hot and neutral wires should never touch: RGB Strip Light Stays One Color The non working LED will obviously be in the string half that is not working. As you can see, most of the problems can be fixed by yourself. 11 months ago, I have a 60ft string of white LED Christmas lights and a small section of the lights are dimmer than the others. Bad LED's will have no faint blue dot of light. In addition, bi-color LEDs utilize inverse parallel wiring, which is when one of the wires is forward and one is backward. We rarely change any other colors, with white, yellow, and red being the least changed colors, Question Yet you are successfully using an ac detector to find the open led. I was only able to repair one of those strings where I was able to find the one (1) bad LED and the whole thing LIT! It can be a total hassle when a light bulb burns out in a hard-to-reach lighting fixture in your home. Plug in your LED Christmas light strand to see which lights will need to be replaced. Note! 4 years ago, We just repaired a string that was half out with this method - one bulb did not have the FAINT TINY GLOW (TM) you described and we replaced that bulb and the string sprang back to life. 1 year ago If it lights good. Bypassing any more that two lights in the same series circuit will likely increase the current enough to put the remaining LED lights in jeopardy which will definitely destroy the entire half of the light string. I am looking for a new conclusion. I thought leds were direct current devices. If you don't have a multimeter to use, a simple coin cell battery holder with leads will let you know if your LED lights are still working. What if you could find the problem LED and then repair the string. M5 lights are the mini lights you may be familiar with. Is there something I am missing? Grasp the LED above the plastic covering and pull it until it releases from the fixture. If it does not light, reverse the leads and try again. I have a bit of confusion. Another tip: You might expect to find the spot where you lose voltage as you move further from the plug. My angel is supposed to have Blue wings, Amber trumpet, Yellow halo and the rest White. The 2nd half of my 50 light C7 led string is not lit. Solder It does this by adding the three different colors together. These lights are available in multicolored, one color or white. RGB LED stands for Red, Green and Blue Light Emitting Diode. Plug in the LED string. I am happy to say the lights are still working fine after two weeks. STEP 3. Out of all the colors blue is the number one color I change followed by purple. Your LED Christmas lights will now function perfectly once again. 1. In this article you will learn the root causes of LED flickering and how you can fix this effect. The last string and half of the previous string are working but the first string that is plugged in and half the second string are not working. Testing LED lights is simple with a digital multimeter, which will give you a clear reading of how strong each light is. While other components will all be helping accent your case, LED strips are going to be … It is not part of the instructions. This, combined with the tinned steel (!!) Question Carefully remove the bulb from the socket, taking care not to break the socket while you do it. Each cut-point is a marked line with a set of solder pads either side (4 pads for single-colour LED tape, or 8 pads for RGB). Christmas decorations are colorful, twinkling and festive. The string of lights I had did not have "replaceable" bulbs. 1 year ago, We have 40,000+ LEDs in our Christmas display. This proved I found the faulty LED. Get a Small Screwdriver or Similar Tool. Try to find the neutal line that only attaches to the last light in the string segment and make sure its plug prong goes in the neutral side of the outlet receptacle. I did this to prove a concept. 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