THEIR LED LIGHTS WON'T TURN ON!

Ugh, these is so frustrating! I need my LED lights to work, but they just won't power on. I've checked the fixtures - they seem fine. Maybe the wall switch is {the{ problem? I haven't remember what else to try! Any ideas would be greatly appreciated! Diagnosing Faulty LED Lights When your LED lights begin to fail, it can be a annoying experienc