lumens -how many- ???

Red Bull

Active Member
How many lumens can you have in a room (13 ft - 9" long) (2 ft - 4" wide)(8ft high) (how many square ft would this equal out to be - rough estimate would be great - ) 30 plants hydro. :idea:
 

T.H.Cammo

Well-Known Member
The short answer is, about 32 sq. ft. and about 160,000 lumens.

But the truth is, the shape of that room really does suck! You have to appreciate the geometry - any room that long and skinny would need six light sources (at minimum) to distribute the light evenly. Don't get me wrong - it could be done! But the added expense and construction considerations should really be given some serious thought - plan the whole project through and you will see that "square" is much more efficient than "long and skinny"! Just my $.02 worth!
 

chunkymunkey33

Well-Known Member
Ok...First of you're not going to get 30 plants in there because you need access each reservoir which means you can only do individual 5 gallon buckets. With that, you can only fit about 13 due to the fact that they are about 1 foot wide. As far as lights, with hid you're going to need to vent out the heat. With such an odd room that's going to be very hard, and very expensive since you'll need several inline fans just for the light reflectors. If you were going to use hid lighting, you will probably need at least (and I mean at least) 3 250 watt HPS's. They cover a 3X3 area so you'd be stretching it because a good 250 watt HPS bulb will give you about 30,000 lumens each, which would give you 90,000 divided by about 36.4 sq ft and that gives you just under 2500 lumens per sq ft. Usually you want to aim for 3000, so I wouldn't get very tall plants either. The more and more I type, the more I think this is not practical. If you add up some of the items I've already mentioned (3 250 watters with reflector and bulb-lets say $900, 3 inline fans-let's say $375, ducting-at least $50, then the hydro materials-pumps, tubing, air stones, buckets, nutrients, ph adjusters, ph meter, ppm ec tester, nutrients, I don't even know what else...) it just doesn't seem like you'll be able to use that space effectively. Anybody else want to add anything?
 

Phinxter

Well-Known Member
if they grow in soil and put 3 600 watt lights with cool tubes and put 10 plants under each light it will work out in my opinion.
cooled hoods will be crucial tho to get the heat out of that area as well as another vrntilation fan for the room and a could oscillating fans for circulation
the 600s will give you almost 9000 lumens per sqft so you mathematically could get away with 400s but i just dont think a 400 covers 10 plants very well. so if you were to use 400s i would use 4 rather than 3 and and put roughly 7 plants under each light.
hope it helps you some but as you can see the shape of your room gives you some pretty steep obstacles
 

chunkymunkey33

Well-Known Member
How much is that gonna cost, and is it worth it?

Hey Red Bull, you can't get a home box and grow in your bedroom or something? It would be a hell of alot easier on you.
 

Red Bull

Active Member
Thanks very much for the replies & the education on -room size-lumens-the$$$$$$. direction is changed. i have attic space which is (8ft H) X (16ft W) X (24ft L) i will use this space and make a room that is suitable for 10-15 plants, nothing crazy, just a little personal smoke for me & friends. the brains at RIU rocks...
 
Top