THEIR LED LIGHTS WON'T TURN ON!

Ugh, that is so frustrating! I need my LED lights to work, but they just won't turn on. I've verified the bulbs - they seem alright. Maybe the wall switch is {the{ linear lighting and control problem? I can't remember what else to try! Any suggestions would be really appreciated! Identifying Faulty LED Lights When your LED lights start to act u