im using a 250w hps in that same general sized grow space. i have a 400w hps, and i put it over my plants.. here's the result of putting that 400w hps over them 3 feet away.{pictures}
You do relize you NEED a ballast to make those bulbs work? Seems you still need to do a bit more research.
If you do decide to buy online, check out HTG Supply or if your poor/cheap then perhaps consider the E-Cono light?
my bad 175mv or 400hps
6 plants
also 4 23w 1600l 2700k cfls
haha i know that thanks though i have 4 23w 1600l 2700k right now
yeah i guess your right how many lumens would be good for my 3fth 22inw 2ft long box i know 4,00l pr sq foot but what do you think because im learning a little right now??? haha
Mercury Vapor is way wrong color spectrum, it's off in the purple side of blue and no good. You'd be better with a used 400w HPS Hortilux regardless, then get a new one after the first harvest.
what is hortilux and why is diffrent that a reg 400w hpsMercury Vapor is way wrong color spectrum, it's off in the purple side of blue and no good. You'd be better with a used 400w HPS Hortilux regardless, then get a new one after the first harvest.