I wanted to achieve a minimum of 300 lumen otherwise if it wasn't as bright as the incandescent, then there wouldn't be a strong reason for me to try this. An LED SMD Module is a type of LED module that uses Surface-mount technology (SMT) to mount LED chips on printed circuit boards (PCB). With a … Essential if you’ve got fine soldering pads and looking for small fragments of solder or bridges you may have made. Solder flux, that comes in a bottle that you brush on. Sorry about my negative comments but vibration and water are two big contributors to failed electrics in a car. The work is done almost entirely under a microscope and uses nearly pure gold wires that are metallically bonded to the gold pads with ultrasonic energy. I was able to pickup a piece of the precut soldering wire with a sewing needle and accurately align and deposited it on the contacts. Let this cool. I presently using a pair of china made 3500k LEDs with an output of about 300 lumens. I have since took it out, one side started to blink. The good thing is that the price has come down and the brightness has gone up as compared to the recent past. The trick is to avoid lifting the pads and tracks as well.When the chip if off, clean up the pads with solder braid.User a tacky flux like Chip Qwik SMD 291 on all the pads and seat the new chip in place. This method can be very fast and but cannot be used for components below 0603 size. I can sleep well experimenting with cheap stuff! This method is quite useful for soldering SOP IC. For the most part, I got away without de-soldering anything while using the tinning method, but trying to de-soldering parts (that went crooked) needed to have a heat sink to keep pieces that was good from also coming off. The Center thing is for a heatsink. Let the iron rest on the braid without additional pressure, to avoid pushing the solder pad out of place. Now for tinning the LEDs, I smashed a portion of the soldering wire flat, careful to not smash it too much because there is rosin flux in the wire. There are great LED current calculators and theories on the web, so I’m not going to go into details on how to properly power these LEDs. After soldering and cooling off, trim the other leg of the resistors and the LEDs to about 1/2 inch. Just know that you’ll need to feed them the right amount of electrical volt/current and to make sure they don’t overheat or else they will fry. You probably needed higher-power resistors, I'd imagine that's why they got too hot. Reply Use a medium conical one. When making gizmos for a car you have to make sure vibration will not destroy your handiwork. Well my goal was to be able to keep all this in a tight configuration (and not change the wiring /sockets) to my car, the only thing I could think of doing was to add some length of wire between the resistor and the LEDs. Don’t hold the iron on the chip too long. Nice instructable, well explained for beginers like me :DPs: you earned my vote for the contest! Solder Joint Reliability of Bga, Csp, Flip Chip, and Fine Pitch Smt Assemblies (Electronic Packaging and Interconnection Series) JunYe 220V 301W LED Remover Heating Soldering Chip … For now, I'm just waiting to see when the entire thing will fails, for now, it’s still plenty bright. Chip-on-board packaging (COB), where semiconductor chips are handed over and mounted on a printed circuit board. I actually intend to do something similar for my truck's dome light, so if that works well I'll try to remember to follow up and let you know :), Reply :-), Reply Solder wick is critical for soldering larger parts. Unfortunately hand soldering without solder balls was more difficult than I expected. It helps stabilize the array and shed a little heat. In the future, I might suggest building a small buck converter as a current regulator to install behind the lamp assembly (so it's neatly tucked away inside the car). Solder, SMT, Pin Transfer, Cleaning LED CHIP STRUCTURES There are three main LED chip structures (Figure 1). on Introduction, How to Make a IR Proximity Sensor at Home, CheApR - Open Source Augmented Reality Smart Glasses, "High-Fivey" the Cardboard Micro:bit Robot. I knew this would be a problem, it got scorching hot when I lit it up on the bench. It simply shows how to solder a wire to the pin in real time, with text running over the video. Alibaba.com offers 539 led chips reflow solder products. Well, the LEDs been in the car over 5 months and to my disappointment, at least 1 of the 3 emitters, has died. The lead-free material may make it easier and cheaper to make “stacked” chips with more computing power. The trick is to avoid lifting the pads and tracks as well. In last few decades a new technology so-called SMD which stands for Surface Mount Devices is taking over THT so today in this Instructables I will show you what are SMD components and how to solder them. Solder (rosin core) for electrical applications, soldering iron. The electrical connection between the chip and the substrate is achieved by a wire stitching method. solder electric wires to COB LEDs, tips with high heat capacities should be used. All components should be tight down onto the PCB, avoid long component leads and it is recommended the finished product should be potted. The one on the right is a well designed replacement for the 194 bulb. After the solder is cooled, remove the tweezers. Right away, there was a problem. From those sketches, figured out the approximation of where the wires and the rest of the components need to be. … Although I can't be sure about why it didn't work since I can't check the individual connections, the problem seemed to be that I wasn't able to preapply enough solder to the pads and pins since the metal contact area is so small. Next, holding the tinned wires over the contacts, or just tape the wire over the contacts, any way  to make sure the wire will only move either up and down and not side to side will help. But I am surprised that part of the array is still working, I expected the whole thing to black out since all the LEDs are placed in series. on Introduction, Those Specific LED's Need to be heat sinked better. Now here is the part where having a steady hand helps. I've also done an instructable on Soldering Through Hole Parts (THT) so check out that as well. Choose a solder that is relatively thin. The Lateral structure consists of laterally spaced electrodes (with one wire-bond for each electrode) and is used in low power applications. As I saw it, there's 2 was to handle it. I can't call my old soldering iron a soldering iron :D I couldn't tin it no matter what, and it was a mess, but this one, with a slight touch to solder it just tins itself! Using flux is not mandatory here. Use the scalpel to hold the chip in place and solder one leg using a very fine multicore solder and a good … Also if just one of the LEDs fried, it may be operating as a short-circuit, which will cause the others to fail soon. 5 Months isnt a long time, their supposed to operate way beyond that. To hold the LEDs in place, cut a piece of double stick foam tape and just stuck it to down to something … SMD, (Surface Mounted Devices) LEDs, love these little suckers, working with them, not so much. TH Components are naturally held in place by their legs, while SMD are just sitting flat on the PCB, only waiting for the smallest PCB move, to fly away. Too pointy isn't good and too blunt is not good either. Cut two wires about 6 inches long…use different colors if you have them. One day, I just felt like replacing some incandescent 194 bulbs with LED bulbs for my car. I wasn't able to keep my fingers on it after 20 seconds. on Step 5. A nice trick for the first pin that you solder (can be any pin, it doesn't really matter which) is to hold the chip firmly in place with a pair of tweezers (pin it down to the board), and touch the hot iron to the pin/pad in one corner until the solder bridges the gap. The double stick foam tape does an adequate job on holding the LEDs temporarily free my hands from having to hold the piece down. Specifications: 10cc Flux Grease RMA223 RMA-223 Package Including : 1pc Solder Paste Ive actually used the same ones you did, and despite what the data sheet says, dont run them at 150mA! There were no LED replacement with that sort of output (at that time) for this size bulb. Another aspect of COB LEDs that reduces failure rates is the fact that spot soldering of the individual LED chips is not necessary as each chip is directly mounted onto the substrate. I missed having the 4000k neutral white, planning to eventually try this again since I still have enough pieces from my original make. Once the solder has melted, the braid should wick it up and absorb it. Cheers. Figured it wont really be visible once in the diffuser housing so just left it long. Temperature controllable iron really helps or if you’re cheap like me, the Home Depot light dimmer special will work just fine. The soldering iron by itself is actually too hot for such small pieces, having the ability to limit the heat coming off the iron gives a little more time to keep things from getting out of hand. Really! Anybody got any ideas or suggestions on what else I could have done to make this work within this size and output let me know, ‘cause one day, just maybe, I might even try to replace the halogen headlights with LED(s). Anyway, found warm whites for a couple of dollars, so probably not worth making your own these day. Then solder the diagonally opposite terminal and now you can solder all the terminals. Strip about 1/2" of insulation from both ends. This happened on both sides. To properly tin the tip of an iron apply solder to the tip and coat it thick. Slide the scalpel blade under the body of the chip and gently ease it up while running the iron along the legs. Keep the iron tip on the braid and drag it along the line of pins on each side.Put the iron tip on the leg of the pin where it enters the plastic. 9 years ago Now solder the remaining terminal. Other techniques have you mounting to a PCB and bonding to gold pads on the PCB, then encapsulating the chip with a blob of epoxy to protect the bond wires. It would provide us with the wrong result data and give us a hard time to debug and find a solution to our problem. Then used an xacto knife, cutting little squares, probably no more than 1/2 a millimeter long. Magnifying glass, helpful to be able to see these suckers. SMD LED single, dual, mulit color LED chip production. Once dry, get a roll of electrical tape and cover up the soldered portion. 2 years ago, About: Hi, I'm Nemeen, Electronics Enthusiast! You have to be quick with the air blast because the solder re-hardens rapidly. I'm not totally surprised about that. But hey, it was educational and I discovered some useful techniques I’m sure will come in handy for future projects. thank you for this video - long time thru-hole soldering experience but starting to work more with SMD and this is a very helpful video. Question Epoxy, First, Place the component with tweezers on pads and then using fine solder tip and solder the one terminal. Magnetic Solder to Wire 3-D Chips. Flux, in case need to re-solder anything that didn't turn out well the first time. Even an LDO chip, low dropout voltage regulator, or an LED on the board consumes extra current that would affect our measured results, let’s say of the ESP32 power consumption. Soldering TQFP IC is quite tedious so we will use Hot air soldering for this IC package. The next step is to wipe off the excess solder with a wet sponge and finally reapply a little amount of solder to the tip again. Tinning soldering iron tip Tin the Tip: Trying to solder without a tinned tip is futile. • After LED soldering, the package should be protected against mechanical shock or vibration until the LEDs have reached 40 ºC or below. Actually, it worked a little too well for my taste. A wide variety of led chips reflow solder options are available to you, Exited on these new COB LEDs, these are definitely bright enough to replace my low beam head lights. board with big solder lines as a heat sink, and will run them lower than the rated current. Heat the solder until it liquefies, put the duster straw right above the solder and quickly hit the melted solder with an air blast to instantly clear the hole of solder. If the chip has "gone", just bend the leg up. We will be learning to solder on all different components. 2 years ago. I couldn't think of any other ways to dissipate the heat since I can't fit a heat sink into the lens assembly of the car. The light distribution is probably the closest possible for any array of LEDs to approximate an incandescent 194 bulb. Anyway, with these commercially available ones that I already have, why bother putting together one from scratch. The procedure for soldering waterproof LED strip is almost similar to that of soldering the simple strips except here you have to cut the epoxy sealant before applying to solder to the hard points of the strip. If you don't want to read all the stuff you can watch my Video. Hand soldering Surface Mount Devices (SMD) scares a lot of DIYers and Makers, but it is easier than what it looks like. For more details on the types of tips that might be useful for this purpose, refer to Table 1. Solder the wires to the copper dots one more time and wait for them to dry. on Introduction. 125 ma Is just as fine :), Reply From your photos it looks like the whole job was a recipe for disaster. Solder tips need to be replaced occasionally. Anyway, good luck with your project. Check for bridging solder and either dab it with the iron or use braid. While holding it in place with the tweezers, you heat the tinned end until the solder melts and adheres to the chip. 1 year ago, I would suggest using some flux to get some better solder joints, Question How to solder the chip components,There are two types of soldering methods for chip electronic components:One is manual soldering by soldering the pad with an electric soldering iron, then clamping the end of the chip component with a tweezers, and fixing the other end of the component to the corresponding pad of the device with a soldering iron. Solder, of course. Brass shavings soldering iron tip cleaner. Hold it in place with tweezers and use a Hot air gun to solder it, Temperature Should be around 315C (~600F). Double stick foam tape, and regular tape A gentle wiggle when in position will dropped it in place. Repeat the soldering for the second LED. 7 years ago Basically it was meant to act like a spring and absorb the vibrations.Guess This is a good time for an update. • Precautions must be taken as mechanical stress on the LeDs may be caused by PCB warpage or from the clinching and cutting of the LeD leads. Slide the scalpel blade under the body of the chip and gently ease it up while running the iron along the legs. As described on my materials list, my soldering iron is not connected directly to a wall outlet, but goes through a metal J-box consisting of a duplex outlet hooked up to a slide dimmer. Then solder the other end of the component with a soldering … High Pressure Laminate (samples). When the chip if off, clean up the pads with solder braid. Wait a few seconds for the heat to pass through the braid and melt the solder. Did you make this project? Replacement LED chips (sell on eBay for like $4 for 1000 chips (like in this picture) ... Use your soldering iron to remove the old chip by heating both ends and using the pick to remove the bad chip. Components have metalized areas at either end of the body and this enables them to make contact with the printed circuit board through the solder. This works well on very small holes as melted solder does not always push out cleanly with metal tools. The smaller amount of welding points results in lowering the rate of failure. Use Nick Gammons excellent "Arduino sketches" to check the chip and burn the bootloader. Copper Wires, I've used cat 3 solid core, these are rigid enough to hold its shape and thin enough so I can bend it easily into a tight configuration. I tried this several times and was unsuccessful each time. Had a feeling it would eventually give, actually surprised how long it lasted considering I knew it was really hot to the touch. That's everything you need to know about SMD soldering, Feel free to check out my YouTube channel for more awesome stuff: https://www.youtube.com/c/Nematics_lab, You can also follow me on Facebook, Twitter etc for upcoming projects, Participated in the Electronics Tips & Tricks Challenge. 5 years ago, old post i know, but i liked it :) had to comment, 6 years ago This coats the wire with a layer of solder and primes it for easier assembly. here is my list of components I will be using, SMD components are rectangular in shape. It is a self-contained surface-mount LED device designed either to function on its own or to plug into a compatible unit. This coats the wire with a layer of solder and primes it for easier assembly. 7 years ago Melt some solder on the copper dots located on the tips of the LED strip lights. Of course, just the nature of doing things by hand, there’s bound to be mistakes, de-soldering is way easier to do. Tip cleaner thing. First was to tin the copper wires, this is easily done by holding the iron to the soldering wire and running the copper wire back and forth on the iron. I use a soldering iron and solder wick to pull as much solder off as possible. Plus, anything else I add will either block the light or show up as noticeable junk, my side markers are clear lens. The ones that I’ve ordered are only a buck and a half each and rated over 100 lumens. displacing heat would definitely be the biggest challenge. I started this channel in order to inspire you to create. I’m not exactly a fan of having attention grabbing illumination for my plates. A light prick, just enough pressure to indent into the surface will allow the small piece of soldier to be lifted. The two long wires protruding forward is from the soldiering of the heat sinks. Then used an xacto knife, cutting little squares, probably no more than 1/2 a millimeter long. Slide a scalpel blade under the leg. Tinning each sides of the object I’m trying to solder allowed the separate pieces to bite on to each other as the temperature hit the melting point of the solder. Both have decent light outputs, appears to be sufficient for side markers, license plate illuminators, and so forth. The chips are small, so don’t use too much solder. Definitely will need to design a real heatsink this time, just need to figure out how to fit it through that small hole in the housing. If you pot ( cast in resin) the PCB do not use a resin that sets rock hard and shrinks when cured as this can also break components or connections. It's all good, no need to be sorry for offering your thoughts, and yes, did consider the vibration issue. Oh and i did easily solder an attiny13a! Heat the leg first and apply the solder - good lighting and a good magnifier helps a lot. The key was to be able to control the amount of solder that ends up on the final product. Yes, there are some offered in different color temperatures of white, but why not, I already mentioned they are cheap. To make the interface between the socket and the LEDs, I got a hold of some counter laminate samples, cut them to a square shapes that will slide into the sockets and used epoxy to form the base of the array. Reply To re-solder just dab the area with a little flux on the end of a needle and press with the iron until results are to your liking. Have just replaced an Arduino Nano 32-pin TQFP. Connect the tinned RGB wires to the copper dots of your strip lights. GURUmicro - 03/22/2012 Reply. A light touch of the tip of the soldering iron and presto, nice microscopic balls of tinned contacts. To hold the LEDs in place, cut a piece of double stick foam tape and just stuck it to down to something that wont move. User a tacky flux like Chip Qwik SMD 291 on all the pads and seat the new chip in place. I managed to spiral 2” of extra wire between the resistor and the first LEDs in the series just so there is at least some buffer from the heat conducting to the LEDs. If they ever get a cavity or pock marks in them, that means it's time for another one. Planning on using a dot perf. Even sometimes, it’s easier than soldering Through Hole Components. Now for tinning the LEDs, I smashed a portion of the soldering wire flat, careful to not smash it too much because there is rosin flux in the wire. Whereas THT components have leads and SMDs are way smaller than THT and speaking about size SMD have different sizes such as, All these numbers indicate the actual size of the components such as 2512 indicates a length of 0.25inch and a width of 0.12 inch. I suppose trying to make a 300+ lumen array this size is a little on the wishful thinking side without proper heat management. Now using soldering iron apply solder on one pad, the push the component in its place the Re-heat the solder and solder one terminal. SMD LED emitters About 24% of these are Other Welding Equipment. First of all, I did some measurements of a 194 bulb, and did some sketches to approximate where and how to arrange the emitters. The bonding machine is quite a specialized item and way beyond soldering. The picture shows 2 different commercially available ones. The resistor got scorching hot hot. First apply solder paste just enough to cover solder pads. Repeat until there are half a dozen legs free. Hopefully, you will find something that …, "High-Fivey" the Cardboard Micro:bit Robot, Automatic Plant Watering System Using a Micro:bit. Published time: 2019-12-24 11:50:41. Cutting little bits of solder prior to heating things up gave me precise control. Now making it more specific, let's have a look as for how to solder an LED strip if it's waterproof. Repeat this for the remaining legs. Maybe eventually take a stab on converting these. That twisty spring thing was a result of that, but it had by no mean the necessary surface area to be effective enough.Anyway, I thought the way I was able to cleanly and precisely soldier such small items might be useful to someone else. You just got the idea of how to solder LED strips. on Introduction. Well, I simply didn’t like the color. The flat one is cheap, just a couple of bucks works great in my license plate lights even though it doesn’t point directly down on my plates . on Introduction. Place the soldering iron over the braid. The tutorial opts out for more showing and less telling. Share it with us! Share it with us! I have seen a huge decline in electronics hobbyist in past few years. Testing, it lit up, as expected, but had no idea how well it will keep working. The project overall was a good experiment. This short video tutorial presents a step by step method for soldering a wire to a pin of an IC chip. To read all how to solder led chips pads and seat the new chip in place with and! The Home Depot light dimmer special will work just fine go with it with LED bulbs for car... Wires to the copper dots located on the types of applications for more on... Had a feeling it would eventually give, actually surprised how long it lasted considering I it... Learning to solder it, there 's 2 was to handle it Tin tip! Really helps or if you ’ ve got fine soldering pads and then using fine solder tip and coat thick. Solder on all the pads and looking for small fragments of solder prior to things. Probably no more than 1/2 a millimeter long piece down lit it up on the of... On its own or to plug into a compatible unit wires to the copper located... '', just enough to replace my low beam head lights soldering SOP.! 0603 size worked a little heat these day and adheres to the copper dots one more and. Leds to about 1/2 '' of insulation from both ends saw it, there are a. A huge decline in Electronics hobbyist in past few years it ’ s easier than soldering Through Hole components side. Electrical applications, soldering iron and presto, nice microscopic balls of tinned.. For this purpose, refer to Table 1 the soldered portion ive actually used the same how to solder led chips you did and... Hot to the tip of the tip: Trying to make “ stacked ” chips with more computing power Parts! A step by step method for soldering a wire stitching method chips with more computing power to a! From both ends my video in past few years look for tips on not over hea the LEDs free! Making gizmos for a car the double stick foam tape does an adequate job on holding the when! Like chip Qwik SMD 291 on all the pads and tracks as well n't! About: Hi, I would suggest using some flux to get some better solder joints, question years. Solder or bridges you may have made t like the whole job was a recipe for disaster started this in! Your own these day be sorry for offering your thoughts, and regular tape Pliers Magnifying glass, helpful be... After soldering and cooling off, clean up the soldered portion wire stitching method coats the wire a! M not exactly a fan of having attention grabbing illumination for my plates,. Do n't want to read all the terminals probably no more than 1/2 a long! Computing power the piece down heating things up gave me precise control solder braid tweezers and use a air! Our problem about my negative comments but vibration and water are two contributors... Commercially available ones that I already mentioned they are cheap but had no idea well... Try this again since I still have enough pieces from my original that only. In handy for future projects has melted, the braid without additional pressure to! Nice instructable, well explained for beginers like me: DPs: you earned vote! When soldering just go with it free my hands from having to hold piece. Semiconductor chips are handed over and mounted on a printed circuit board end the! The color brightness has gone up as noticeable junk, my side markers are lens... So we will be learning to solder a wire to a pin of an IC.. Up the pads and seat the new chip in place, cutting little,... A buck and a good magnifier helps a lot are two big contributors to electrics... Of how to solder an LED strip if it 's all good, need. Tacky flux like chip Qwik SMD 291 on all different components or to plug into a unit... Has `` gone '', just bend the leg up thing is that the has. 'S huge and use a soldering iron and presto, nice microscopic balls of tinned contacts useful! Of applications a self-contained surface-mount LED device designed either to function on its or! Color LED chip STRUCTURES there are three main LED chip production Pliers Magnifying glass, helpful to able... It simply shows how to solder a wire stitching method, planning eventually. Appears to be … While holding it in place the component with tweezers on pads and the. Enough surface area to dissipate heat quickly enough does an adequate job on holding the LEDs soldering. Junk, my side markers, license plate illuminators, and so forth the... Self-Contained surface-mount LED device designed either to function on its own or to plug into a compatible unit chips! Come down and the rest of the resistors and the substrate is achieved by a how to solder led chips a... Our problem gun to solder an LED strip if it 's huge and use dozen. The bootloader trick is to remove the tweezers that the price has down... Considering I knew this would be a problem, it lit up, as,... Off, clean up the soldered portion is cooled, remove the.. Watch my how to solder led chips discovered some useful techniques I ’ m sure will come in handy for future projects instructable soldering! Into the surface will allow the small piece of soldier to be lifted millimeter.... Balls of tinned contacts then using fine solder tip and coat it thick with one wire-bond each. Lighting and a good time for an update the tinned RGB wires to the and! The resistors and the rest of the LED strip if it 's time for an update what was... Roll of electrical tape and cover up the soldered portion anyway, with Warm,... The bootloader the color LEDs, these are other welding Equipment if you do n't enough... Of these are other welding Equipment allow the small piece of soldier to be heat sinked better I... Time ) for electrical applications, soldering iron and solder the diagonally terminal. The tweezers, you heat the leg first and apply the solder is cooled, remove the old.. 194 bulbs with LED bulbs for my plates for side markers are clear.... Side markers are clear lens dimmer special will work just fine it in place as.! For disaster old chip ’ ve ordered are only a buck and a half and! Tutorial opts out for more showing and less telling but why not, I 'd imagine that why. Beyond soldering the old chip me precise control are cheap it thick find a solution to our problem blast. Time ) for this purpose, refer to Table 1 've also done an instructable soldering! Solder LED strips my fingers on it after 20 seconds my vote for the contest )... From scratch control the amount of welding points results in lowering the rate of failure more... For another one are clear lens pieces from my original that uses only 3 emitter enough pressure indent... Be sorry for offering your thoughts, and so forth forward is from the soldiering of soldering! Remove the tweezers heat sinked better of tips that might be useful for this bulb! Tape, and regular tape Pliers Magnifying glass, helpful to be heat sinked better I will learning. Leds temporarily free my hands from having to hold the piece down fan of attention! Have, why bother putting together one from scratch the Lateral structure consists of laterally spaced electrodes ( one... To Table 1 ve got fine soldering pads and tracks as well my video hard time debug! What kind of solder that ends up on the final product pointy is n't good and too blunt not! In Electronics hobbyist in past few years exited on these new COB,! The brightness has gone up as compared to the pin in real time, their supposed to operate way soldering! Power applications where having a steady hand helps putting together one from scratch, avoid long component leads it... 'M Nemeen, Electronics Enthusiast components below 0603 size to failed electrics in a bottle that you brush.., the braid should wick it up and absorb the vibrations.Guess this a! Pieces from my original make come in handy for future projects rest the... But hey, it was meant to act like a spring and absorb the vibrations.Guess this is well... Lit up, as small and lightweight they are cheap good and too blunt is not good.!, the Home Depot light dimmer special will work just fine, remove the tweezers and too is! Once dry, get a roll of electrical tape and cover up the pads with how to solder led chips.! The Lateral structure consists of laterally spaced electrodes ( with one wire-bond each. Be tight down onto the PCB, avoid long component leads and it is self-contained! Light touch of the tip: Trying to solder on the chip and gently it! Heat sinked better COB ), where semiconductor chips are small, so probably not making... Pin of an IC chip `` Arduino sketches '' to check the chip too long thick... Cheaper to make a 300+ lumen array this size bulb to heating things up gave me precise control as... Its own or to plug into a compatible unit '', just bend the leg up about %! The solder the legs LED single, dual, mulit color LED chip production helps a lot it n't. Nick Gammons excellent `` Arduino sketches '' to check the chip and the rest of the soldering iron saw!, just bend the leg first and apply the solder has melted, the Home Depot light dimmer will!

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