Quote Originally Posted by Weezard
Not claiming to have a lock on the most efficient growlight.
Just thrashing about and getting acceptable results for 1/10th the energy of HPS.
Pretty happy with the current setup.

Building a more powerful version to see if it speeds production or adds bud mass. :weedpoke:


I'll have dimmers on this one.
Will run them at full power for a full bloom cycle.
IF, (and that's a big if), I can save 2 weeks and get bigger buds with twice the energy cost, it's all good.
Then, I'll "do the math" to see if it's cost effective in Watts per ounce.
If not, I'll turn 'em down to the minimum energy consumption for my present yield and be patient.

If you decide to use 15W. ledengin 660nm. leds, be aware that Mouser only has 26 left as of yesterday.
Seems they were an experimental, limited run and Ledengin is not presently shipping them.

Anyroad, welcome to da Beeg Guy's Land.

Aloha nui loa,
Weezard

Mahalo for the welcome. What island you on?

If the UB on your light was an LED, then you only had UVA. They have not produced any higher UV led's yet (as of my last internet research in about september 2008)

UVB is the color that tickles the trichomes as I understand. It sure did/does in my all-flouro flower room. 26w cfl with 5-10% UVB will also put out about 30% UVA... very little UVC, the purifier color range. (thankfully I wear transitions glasses)

I aske because (someone) mentioned adding 45w cfl for the added spectrum.