Review on 🔌 Robertson QuikPak EBallasts ISU232T8120 by Robertson by Kyle Rodman

These ballasts hum or buzz terribly. Of all the replacement ballasts I've used, these are without a doubt the loudest. A real shame because they are priced right. .Now they're going in the bin and I'll have to try something else. I lost 53 ballasts in a brownout and bought them to replace the ones that had burned, what a horrible and costly decision I made, never again.