Plastik, good point about the 'refurbished' ballast- I wouldn't get another one from them. I'd go with a new one. I've gotten 2 new Inside Sun ballasts and one refurbished one from them. The used one works, but looks like it's been through hell and runs hot.

The new ones are just fine, but he should REALLY consider deburring the housings. I have to wear leather gloves to carry them around. OUCH.

My other HUGE complaint about them is that they don't ground their sockets. I mean, duh, that's a pretty basic thing to do. I took one apart and the ground wire had been neatly snipped flush with the housing.

My bottom line is, yes, I'll order lights from them again because they're so damn inexpensive, but never a refurbished unit.