My bad, I understand you're new, it's just that your first post made it seem like you knew most the basics like the diff between lumens and kelvin..
ill break it down a little more in the future.

There's two cycles: Veg and Flower. You will veg for as long as you want; as the longer you veg the bigger the plant will be. However, since your new I would flower as soon as they are mature enough to ensure you dont run out of room. When you switch to flower, the plant will double sometimes triple in size.

Nodes are the places where a branch meets the main stem. They also represent a set of leaves. So when youre at 3 nodes, there should be 3 pairs of leaves.

Dont bother with rain water. Are you checking PH of your water?

I took your advice & essentially cut of nearly 1/2 the room by pacing 2 photographers umbrellas hoping that even more light is transferred (as energy) in this vegetative state
Good, so now you should be around 3sqft = 9,000 lumens for veg / 15,000 lumens for flower

*Make sure there are no light leaks. WHen your area is closed off and you see light getting out, then light will get in at those same spots. JUst a heads up.
*PICTURES: none of your pics have worked since the very first one you placed.
-click paperclip/ click add files / click basic uploader / click browse / find picture / click insert in line.

READ READ READ all stickies! this is all info that is found in stickies..peruse this site a little bit.
SmokeMyPiece Reviewed by SmokeMyPiece on . Grow Closet Help Newbie here so here are the facts; Just started a "Grow Closet" 8' x 4' x 1.5' & have 4 "white widows" x 1.5 weeks looking ok but need help with particulars! Soil is 2 parts peat/1 part hummus w/manure, 1 tbs "Plant-Tone", & perlite. Using 2 40w cfl's & 2 45w screw in cfl's producing 3000/5500K respectively & are left on 24/7. Walls are white, temp is 88F or 31C, RH 40% at best & this is with misting the area using a fine mist spray every 2 hours. All appears fine & the leaves look nice. Rating: 5