@ Headshake; thanks for the heads up on the foxit reader. I'm going to give it a try. Not sure abt the web crawler tho, my last computer had something happen in that department, long story....but I bought a new one. It cost me the same price as fixing the old one was going to be and I was not cool on having someone I did not know well, seeing the shit on it.

@ Dutch; I've got a bunch of nickles, but most be made from rock. You say the wooden ones are no good? I think I can plam them off on a little blue 'zard.

@ Weezard; I'm not a ryhmen simon so no thanks trying to respond in prose.
On the pkg for the UVb CFL it states that 50mw spec is at 18". During the entire grow the UVb bulbs were kept right abt 12" above the plants. Check out the second chart that 'shake posted, it gives some UV index "ballparks". BTW I think that graph with it is from a T5 type not a CFL. It made me look at the cardboard sleeve from the bulbs I use, T5 24" 14watt NO (of course I use an IceCap ballast and get 40w each ). But it states the 50mw spec is at 12". Heaven only knows what the heck the output for SHO are and I use 4 of them but I only run them 3 hrs per day, during the middle of the photoperiod. High noon!, taking a page from the "emulate nature" crowd. .
I tried to time the "transitions" at 18" from the light and then oustide but could not. I could never tell when they had reached peak darkness to stop the clock. But it was slower then outside, so I just guessed at it. It really was the reason I decided to run it the entire photoperiod. Maybe I should go hi-tech and check out eraseing Eproms.

@ knna; a little mj goes with anything, anytime. The greatest part with playing with my ggson is if he gets fussy I can him him to his mom and say "see ya later".
As I just said to weez, that spec is at 18" and we kept the light at abt a foot (1/3 of a meter?). The plants were rotated in the tray daily to keep outer and inner rows pretty equal over the grow. Humidity was 50-55% during veg and solid 40% during flower. The grow was conducted in an air-conditioned space, so it was easier to regulate the 3 chambers. The weight increase did not surprise me that much. I have seen a scientific paper that showed increase green mass from UVb supplemation, so if you increase the green wieght of the buds the dry weight follows. Like I said it was not much, I took the average plant weight from each chamber and compared. The least increase was from the "apricot" at 2gr and the biggest difference was the HinduKush (which is not a heavy producer normally for me) at 5gr. Plants were vegged when the tallest was 12" and shortest 10", strains were consistent the variation was between strains. I wish I could get all strains to grow the same, it would be much easier. Finished hgts ranged from 25" to 34".
Oh, OH as I wright this I think the little blue lizard found a fly in your ointment or math. That's why I just guess at shit, run the experiment and can't really quantify the amounts of UVb used. :thumbsup: