I don't understand why anyone thinks that just because a light is old it's no good..@diabolical666?? I was given a 15+yr old hydro farm 400MH..i think it's the same thing he has, built in ballast..works fine. I know enough that i took it apart,cleaned it and checked the wiring. Those old mag ballast light last forever..might need to replace a CAP here and there. I see a huge fear, or misunderstanding?, of electricity in the MJ growing community..I don't get it, it's pretty simple. Oh and once you get bit by 120 a couple times..it's not that bad..lol
I'm not arguing the other points, I don't use it much because it puts off too much heat and my T5 blows it away.