I'm wondering about reliability.(I have read that they are a pretty good ballast).
I also read that the 400w doesn't have a ballast cooling fan?Can anyone confirm?
I'm guessing that if they are a reliable ballast and they don't have a cooling fan,then they must not need one.?
I also read that the 400w doesn't have a ballast cooling fan?Can anyone confirm?
I'm guessing that if they are a reliable ballast and they don't have a cooling fan,then they must not need one.?