and another def for lumen
Lumen: by definition there are 683 lumens per watt of radiant powercows at a wavelength of 555 nm
just feeling silly trying to confuse things. First I am most impressed with your light reading agent86 and I really could care less if it is in lumens or foot candles or whatever.. I still think it's only one small part of light.. I think cri and kelvin and luminous efficiency have alot to do with it as well.. ( but i do like the comparison of the enviro's at 1" and the hps at 1') From the looks of agent86's grow.. the envirolights lights arnt be half bad and I guess product really matters.... I also wonder about bulb life concidering their expense.
Last have any of you ever concidered sad-lights.. for people with winter depression.. supposed to be 10000 lumens/m2 with a cri of 98..checkem out here.
http://www.sunalite.com/s_lightboxes.cfm
ps
1 lux = 1 lumen uniformally distributed over the are of 1 meter.. and since we are all using feet here.. I figure I'd leave it to you all to scratch you head with.
pps
powercows translates to power for most of the rest of the world.