Quote Originally Posted by 420NLGuy
NeverEnough: During veg, I used one 24W CFL per plant. Each bulb is rated as 1560 lumens at 6500K. To get 3000 lumens/sq. ft, I calculated the distance to be about 2.5". Every forum I found had recommended to use about 30,000 lumens/sq. meter (which is 3000 lumens/sq. ft).

I used one 26W CFL per plant in flowering. Each bulb is rated at 1650 lumens at 5000K. So that also calculates to about 2.5" distance to get 3000 lumens/sq. ft. When the plants got tall enough, I used 2 bulbs/plant, giving them 6000 lumens/sq. ft.
The bold parts are where I have no idea where you get any of the calculations or distance equations. Light dissipates the farther you are from the source, whats this multiplication of foot candles 100% per inch?

Give me a source, and I'll still probably say that it's wrong, but I'm just ponderous of where you got those numbers......


-C