BMWEATER
Well-Known Member
I have a 600 watt setup powering a 400 watt Phillps HPS (45k lumens). I borrowed it for about a month so I dont want to break my budget but I was thinking about upgrading my bulb to a used hps from the hydro store for 5 bucks. I wanted to know what was the main difference between a 400 and 430 watts (other than lumen output)? Is there a specific reason why one would choose either or? Their both 5 bucks so point me in the right direction...lol