Already have fans blowing the heat off my tree tops... Really I should have turned the lights down, but too late now. And what's the benefit of adding a light only to turn the wattage down???
The way I see it, I'll probably recoup my cost in bulbs and electricity in a year or two. If you think about it, over the life of the LED, it will pay for itself in bulbs, and electrical savings over that time is just icing on the cake. No more changing bulbs, get rid of the ducting, don't have to upgrade AC, reduced AC costs, more even lighting, keep the lights closer to the plants, etc. Plus my ballast are old, so there is a chance I would be replacing them before too long. With LED, I think I'm going to switch to a closed room and add CO2.
I've been doing this a while and I'd consider myself a pretty accomplished grower. I'm used to my tops looking like BKs, but right now mine are heat stressed. I'm finally starting to see LED grows that live up to the claims that the LED companies have been making for years (~same light output as HPS at ~70% the wattage). I've seen 2 grows using Gavitas and I like what I saw. BK is clearly killing it. It's good to redo the grow every-so-often and see what improvements can be made.
