mnelectrician

There's quite a few ways you can retrofit troffers you can go 4 lamp t12 to 4 lamp t8s, 4 lamp t12s to 2 lamp t8s, 4 t12s lamp to 2 lamp t8 with reflectors. You can also tandem wire a 4 lamp t12 fixture where you have two lights running off of one 4 lamp ballast. We used to just change out the tombstones if we added a reflector and reuse the old ones if we didn't. Wouldn't hurt to change them they usually get cracked or brittle after a while from the heat coming off the lamps and ballasts. I used to retrofit at night about 11 years ago. Made for some kinda long days after working all day.

Electric_Light

Sure, just send them back to us freight prepaid along with a check for $5.95/ballast for handling and return shipping. We'll also send you a $10 off brake work with purchase of lifetime brake pads from our partner shop.