What do you think?

[Weezard]

I am using 3 CFL bulbs at 1500 lumens EACH BUT I will be changing them to bulbs which have 2275 Lumens EACH.

The results for the light intensity of my grow box:

Square Footage Under Light Source = 4 Square Feet
Formula: lumens/ft2

1500/4 = 375 x 3 = 1125 Lumens
2275/4 = 568.75 x 3 = 1706.25 Lumens

minimum of 2000 lumens/ft2, optimal 5000-7000 lumens/ft2.

So according to your formula i need 20,000 Lumens? Thats hell of a lot...

True dat!
However, those figures are for a more of a point source light like HPS and MH.

The advantage of CFLs is the fact that, like LED arrays, they are not point source lights.
We can have the plants much closer to the bulb and we catch a break on the inverse square law.
This time it works in our favor,
As you get closer to the bulb, lumens per square foot soars.

Go with the stronger light and select for color temperature.
I'd recommend that you use "warm" white for flowering.

Mo' red gives mo' betta buddage.

Carry on,
Weeze

Weezard Reviewed by Weezard on 01-09-2014. What do you think? Hi all, I am currently doing my own small indoor grow and when i say small i mean only one plant. Was wandering if someone could tell me how my weed plant is doing from the pics below. Its been growing for a little over 6 weeks now and is getting bigger every day. Btw the bottom have yellow spots which then turn yellow and shrivel up and die as you will see in the pics Rating: 5