What is the formula that you need to figure out how much watts per square foot of grow area? I got a 5x5x7' tall area only powered by 600HPS. I am trying to fine tune my grow and this is the first order. Do I want 50watts per square ft or 100?
IMO for normal hydro systems and soil, 65w/sqft should be the max. The rule used to be 50w/sqft, but people have pushed it upwards of 100w/sqft with high end hydro systems. For most people, 65w/sqft is about the point of diminishing returns, and anything higher is just wasting money. 16sqft covered by a 1000w lamp is 62.5w/sqft. 25sqft covered by a 1000w lamp is 40w/sqft. 25sqft covered by 4 -400w lamps is 64w/sqft. I think you'd be just fine to put a 1000 watter in there. In fact, I know you would, that's whats in my 5x5. :thumbsup: -tC
That means I get 24watts a square ft? That ain't good is it? I think I might put 2 600's together in one of my 25sq/ft rooms and add 1000 to the one that I took the 600 out of. That would give me 48watts sq/ft in the 1200watt room and 40watts sq/ft in the other with the 1000watter.
Zactly! What tC said. Tho I'm guilty of being in the hyper wattage crowd. 75w-100w p/sq/ft just seems to give me a woody.:glasses2:
Im rollin a 16sq ft area with a 1k, bout 62 a sq ft per watt...yields around 22-24oz......2 rooms like that, then 2-600s in a 5x4, running about 60watt a SQ.....yielding around 25-28oz
Instead of adding more lights to each room I think I am breaking down the wall that separates the rooms to make one large room. Each RDWC system will be rerouted to make a straight line hugging the walls, so 2 rows of 6 on two different control buckets sharing the same lights. So the room will be 4'.9" wide X 9'.10" long. A total of 44.59 sq/ft which will be 54watts pr sq/ft for 12 plants. BETTER :thumbsup: I will add 2 more 600's to add to the all ready 2 600's in there for a total of 2400watts. I should see an improvement from 24watts sq/ft.
I agree with rr on this one, I just ran cc grow calc and I'm coming out at 97 watt per sq ft , I new I was upwards of 85-90 but 97 was a nice surprise. I have ran like 45 watts per sq ft and I can def see a major difference in yield at 97 watts per sq ft.
Just to add to the date pool... Im running 600w over 8 sq.ft. = 75 watts per sq.ft. Things are rocking right along with the flip right around the corner. cheers edit: wanted to say the that the walls are covered with Orca Film as well. It's like having a little piece of the sun all to myself.
