I replaced my 600w HPS and 200w Chinese led for my 400w COB LED setup I made.
I expect at least 1 gpw. I'll be looking at a much higher yield at half the electricity use, and a lot less heat.
I use to run two in line fans on both ends of a cool tube to get the temps to low 80s, this new light requires just a light breeze with the box fan I already have in there, no extra venting, and it is staying below 80f.
I would look into it Butch, I'm decently new to the LED world, and this is my first full flower run I'll do, but I just got done with my third light and I'm telling you this effeicny shit has been blowing my mind.
It's insane how much usable light and electricity you can get off some of these leds now days, HID/MH/HPS is really starting to look like a cavemans game to me.
Less energy to produce more light which means more buds, besides the low heat, it only makes sense.
@ButchyBoy