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