Re: LEDs afloat
On the subject of soldering heat sensitive components. I believe most soldering damage is done by using a soldering iron that is too SMALL, not too big! When you put a small iron against the joint, the joint sucks the heat out of the iron instantly. The iron must then supply more heat until the temperature comes back up and in the meantime heat is flowing into the device and the wire. Your insulation burns back and your device may be damaged. Use a larger iron and it holds enough heat to do the entire job. So when you touch the iron to the joint, the joint heats to the proper temperature instantly the solder melts, and you are done in an instant so the heat doesn't have time to flow. Try it, you won't believe how much better your solder joints will be!
Gary H. Lucas