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 bulbs - they seem alright. Maybe the circuit breaker is {the{ problem? I can't remember what else to do! Any ideas would be much appreciated! Identifying Faulty LED Lights When your LED lights begin to fail, it can be a painful experience.