THEIR LED LIGHTS WON'T TURN ON!

Ugh, this is so frustrating! I need my LED lights to work, but they just won't turn on. I've checked the sockets - they seem fine. Maybe the outlet is {the{ problem? I don't remember what else to do! Any help would be much appreciated! Diagnosing Faulty LED Lights When your LED lights begin to malfunction, it can be a frustrating experience. Be