i think the chart came from this one:

IAEEL newsletter 2/93

here are a few more. i'm not arguing with you. i probably wouldn't believe it if i didn't read it the other day when looking at bulbs. it tripped me out. i think i said "what the f*ck" right in the middle of target. i hope one day to have a proper grow light where all of this won't matter anyway!

good growing.

-shake

EnergyManagerTraining.com
/pdf/LightOutputinCompactFluorescentLampinDifferentPosi tions.pdf

Fluorescent - linear, circular and U-shaped

Not Cool to be Hot

btech.lbl.gov/papers/37856.pdf

just google cfl output+orientation

glad to have you in the forums. i like good conversations!!!