THEIR LED LIGHTS WON'T TURN ON!

Ugh, these is so frustrating! I have my LED lights to work, but they just won't switch on. I've verified the sockets - they seem fine. Maybe the wall switch is {the{ problem? I don't know what else to try! Any help would be really appreciated! Diagnosing Faulty LED Lights When your LED lights begin to act up, it can be a frustrating experience.