I posted this in another thread but and it really should be in this thread as well ...
It's all about LED's, in particular the LED that I have just bought (Kessil H150 - Magenta) ...
[youtube]Mu8qZL5Wp4s[/youtube]
Holy Crap! $300 for a 36w unit? That's gonna be a hard sell. Great video though
Yea, it is a bit on the expensive side although you can get them for around $250.00.
They don't have a huge footprint (about 2 foot dia at optimum height) but they are supposed to have great light penetration and the light is all focussed into a small area and none is wasted.
As these have been developed specifically for the horticulture market, and are not generic LED's that have a million uses, they should be exactly what the plants need to grow.
I have a feeling that as the costs of electricity continue to soar, LED's will become more advanced and start to replace the old technology.
Coincidentally, my grow space will allow roughly a 2 foot diameter scrog and by keeping this type of light at the optimum height I should be able to get maximum benefit from every photon of light, with a few satelite CFL's to illuminate the edges of the grow (if needed). I bought one of the Magenta H150 lights to try it out.
If I run my grow without any supplementary CFL side lighting, I will be growing using just 34W of power - in fact I might just do that and see what my yield per watt turns out to be - could be interesting.