The problems I find with LED lights is that the LED circuit boards themselves are most often sealed in resin for use in a wet/damp environment and in most cases you can't just unsolder and replace a burnt out single LED, if you can find isolate which one in the series circuit that has gone bad. Also I find that they are often wired in groups so when one burns out you lose 3 when only one is actually bad. So off you go buying a whole new light assembly. I also notice the same with my garage LED lead lights. The whole light goes out (all 40 LEDs wired in series) with the burn out of one single LED. Not everyone can isolate a single failed LED thats covered in resin to waterproof the unit. Another issue is that not all LEDs are the same, and the wave lengths vary from manufacturers and solid state material used. Also most are made overseas and the companies come and go rather fast. The look pretty, but many have a high infant mortality rate. For some applications I personally prefer screwing in a single bulb, than hunting up a look alike assembly, that I can see (in most cases) better with. On my C-81 I moved the headlight assy. back 3/4 of an inch from the lens and the standard 1156s don't melt anything.