The importance of a ballast in an indoor grow-room is something that really doesn’t need much explanation. If these products weren’t in existence, it’s likely that the entire indoor growing scene wouldn’t be either.
As usual there are many types of ballasts around nowadays, and they come in many forms. There’s also a multitude in ways of which you can compare and assess ballasts. In order to get a full and complete picture of every type of ballast we are looking at here, we would need a considerably more room in the magazine, time and not to mention ridiculously expensive equipment to measure with. In order to fit it all nice and concisely into a bite size article is a little bit unrealistic to say the least, so to correctly represent the ballasts we’ll be conducting these tests over a series of articles and over a number of issues of the magazine.