himzluvhishallie
Well-Known Member
400watt mh
flowering can take from 6-12 weeks or more all strains are diffrnti got a quick question..about how long does it take to flower..i want a mature flower..im hoping for some quality headies
High Tech Garden Supplyhow much does a 400 MH cost..roughly
are these cfls you are talking about???i have a 40 watt a 200 watt and a 250 spotlight
thanx specialist...this is my 1st grow..feel like there growing sloowww...is 84 degrees to hot??
400watt hid at 12" from plant..... 5-7000 lumens per sq foot is what you want,..... what do you mean by 75 watt per sq ft... math dosent tell you how far away to keep your lightthat 400watt MH is really close to those plants. I don't know if MH is cooler than HPS or something, but i'm betting you just need to raise that 400w up. I don't think it will slow or hurt or do anytihng negative to your plants because that 400w is so powerful compared to your area. It's a simple fix. Make sure plants don't break 86degrees. I keep coming up with the number of 75w per square foot. Light diminishes at a rate of 50% for every one foot. So if your light was raised exactly 12", it would be pounding 200w onto the top of your plants. 2 ft would be 100w. I'd do the math and figure out EXACTLY how high the light needs to be for 75w/square foot, but i'm lazy. 3 ft would be 50w.
If you throw fans DIRECTLY underneath it, powerful ones, you could cool it better. Or get tempered glass upgrade and run ducting to and from your light with a flan blowing through.