I turn it on, it right away makes a metalic click coming from ceiling. It then at times continues to make that same sound irregularly, even after turning off the lights. I can't sleep because of it. It stops after an hour.
Facts about the ceiling lamp:
it's not sitting flush on the ceiling, because an old metalic hook pokes out of the ceiling right where the lamp is. The flat plate can be tipped from side to side because it's resting on the hook. The flat plate is screwed to ceiling but not flush all the way because of the hook.
it's cheap Chinese lamp
the power cable feed to the switch outlet is only 1mm size, but the cable going to the ceiling is bigger.
3 ikea led lights (600lm each)