THEIR LED LIGHTS WON'T TURN ON!

Ugh, these is so frustrating! I need my LED lights to work, but they just won't switch on. I've verified the bulbs - they seem alright. Maybe the wall switch is {the{ problem? I don't remember what else to try! Any suggestions would be greatly appreciated! Identifying Faulty LED Lights When your LED lights start to fail, it can be a annoying ex