I just got a standard Magnetic 400 watt HPS. There is a small hum. Is it suppose to hum or is the ballast damaged?
Thanks
Gatekeeper777 Reviewed by Gatekeeper777 on . Getting a hummer I just got a standard Magnetic 400 watt HPS. There is a small hum. Is it suppose to hum or is the ballast damaged? Thanks Rating: 5