Aldo90answered grow question 2 years ago If you've got the led mate I'd use that, a 600w hps bulb will produce a shocking amount of heat. I was using the bulbs for years and swore by them, until a freak 2 week summer a few years ago made me change my mind. That light says it will do a 3x3 area, it will do both veg and flower. The hps bulb mate is for big full rooms, not tents really. I learned that lesson the hard way.