THEIR LED LIGHTS WON'T TURN ON!

Ugh, this is so frustrating! I have my LED lights to work, but they just won't switch on. I've looked the fixtures - they seem okay. Maybe the circuit breaker is {the{ problem? I don't know what else to do! Any help would be much appreciated! Troubleshooting Faulty LED Lights When your LED lights begin to act up, it can be a painful experience.