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