Quick and easy question

[TheBillCollecto]

I know a 400W HID light is usually enough to cover a 4 x 4 area or 10-12 plants or less.

My question, I'm going to have a 4' x 8' mylar covered room with 20-24 plants, will a 400W MH along with 2-4 strategically placed 4' 2700 lumens cool white cfls be enough light just for the vegetative stage?

I plan to use a 1000W HPS throughout the flowering stage. Thanks in advance to anyone that can provide some helpful input.

[Don Piano]

You probably want to get another 400watt lamp to fill that area. It may be ok in a in something more square, but 4x8 is too rectangular to allow one hps light to get to all of the plants without using a lightmover. Even a 1000watt in a 4x8 is going to be hard to pull off. I'd recommend 2-400watt or 2-600watt lamps for that area. Or take advantage of the size and split it up to make a 3x4 mom/clone room, using that 400watt in there, and veg some moms in there, and a make a seperate 4x4 flower room, (using the middle leftover space for electronics to cut down on heat) and Do a perpetual harvest. Then use your 1000 watt unit in the flower side (could get away with a 600watt in that size though)

[screwdababylon!]

thats a good advice man

i defenetly would do like the MAN told u
+ some big CFL bulbs for your early veg