THEIR LED LIGHTS WON'T TURN ON!

Ugh, this is so frustrating! I have my LED lights to work, but they just won't power on. I've looked the fixtures - they seem fine. Maybe the outlet is {the{ problem? I can't remember what else to try! Any ideas would be much appreciated! Diagnosing Faulty LED Lights When your LED lights start to malfunction, it can be a annoying experience. Be