THEIR LED LIGHTS WON'T TURN ON!

Ugh, these is so frustrating! I have my LED lights to work, but they just won't power on. I've looked the fixtures - they seem okay. Maybe the wall switch is {the{ problem? I don't remember what else to do! Any ideas would be greatly appreciated! Diagnosing Faulty LED Lights When your LED lights start to malfunction, it can be a frustrating exp