If a lighting ballast fails, do you change it out hot? That's a fairly common practice, but you can get electrocuted by 277V just as surely as from a higher voltage. If you're on a ladder, the fall ...

If you want to improve lighting system efficiency, ballast selection is critical. Today's most popular energy-efficient lighting designs involve new ballasts. Because ballast technology is constantly ...

Actually two ballasts failed. These are from Advance Transformer Company and I really don’t think it is their fault. Heck it might be my fault since I see that there are different colored wires that ...