Ok strange question, 2nd week into my grow I turned my lights off tonight and roughly a few mins afterwards I heard a loud pop come from my grow tent. To start with I had thought my blub had popped, so I switched the ballast back on and got nothing from my lights. Unplugged ballast and plugged back into other power socket light came back on. Wondering if my power strip is acting up now, it's surge protected aswell. Only other thing the pop sound could be is the light reflector contracting from heating. Running a 400w lumatek & wing reflector. \t
I don't know about the pop, but I do know that when you shut off a HID light, it needs to cool down before it will turn on again. Maybe that's why it didn't turn on the first time? I dunno.
You said it wasnt the bulb? It happened right after the lights went out? I dont know...you have a lot of water in your tent?
Did you flip the breaker for the light? If that is it, be very careful as you may have overloaded the system. The surge protector is good.
It's been ok since, bulb did't blow unplugged and replugged into surge protector and all working fine today. Not sure what the pop was, apart from reflector being hot etc.