THEIR LED LIGHTS WON'T TURN ON!

Ugh, these is so frustrating! I have my LED lights to work, but they just won't turn on. I've checked the fixtures - they seem fine. Maybe the circuit breaker is {the{ problem? I haven't remember what else to do! Any ideas would be really appreciated! Diagnosing Faulty LED Lights When your LED lights begin to fail, it can be a painful experienc