Hey Zeez. Those CMH are "optimal" at right around 39 watts per square foot. You'd actually need "3" Phantoms in that 5x5 for effective lighting. Good luck though.
LH
Thanks All. I went to grow superstore today and pulled the trigger on 2 Phantom lights and a 5x5 ($387) Gorilla. For that price.... They had really cheap prices. LEDs look even better than CMH on the electric bill, but they are so expensive it's hard to justify.
Next step is figuring out an auto watering system. The best setup I've seen so far is a submersible pump in a reservoir and a drip system.
Aren't they like ~ $600 for 315 watts? I am told the reflector replacement cost is ~ $375
An Amare technologies SE 250 covers ~ 4 x 4 with very little heat, and does not require frequent hood replacement. 100% of the 50 watts aims directly at the canopy, easily outperforming the CMH in photons delivered Just sayin
See my Mini Me F & D thread. It's easy to make, cheap, and performs amazingly
If 630 watts CMH is comparable to 1000 sod, Isn't that like 40 watts per square foot for the 5x5? Or, is 39 a CMH number?
You should understand that all watts are not the same in the values we are interested in: umoles
A ~300w Cree CXB CoB based LED panel will run circles around ~ 500w conventionally rated lights, while consuming < 40% of the electricity, PLUS, saving the annual bulb, and reflector replacement cost.
hth
Zeez. That Gorilla is 5x5 (25 square feet). 25 square feet x 39 watts per square foot = 975 watts. You'll do fine for veg "or" exchange the tent for a 4x4 (16 square feet). 16 x 39 = 624. 315 x 2 = 630... now that's perfect right there.
If you stick with the 5x5, the plants along the walls won't get enough light.
Good luck tho.
LH
Did you not read my umole post?
thats good, but I am still a fan of scrubbing the air going through my lights.
You will also want another fan for intake and exhaust beyond whats circulating the lights.
I use thermostat outlets i get off amazon to control most of the year. and use a 24 hr timer set to only intake during the night throughout the hottest months.
Did you not read my umole post?
Zeez. That Gorilla is 5x5 (25 square feet). 25 square feet x 39 watts per square foot = 975 watts. You'll do fine for veg "or" exchange the tent for a 4x4 (16 square feet). 16 x 39 = 624. 315 x 2 = 630... now that's perfect right there.
If you stick with the 5x5, the plants along the walls won't get enough light.
Good luck tho.
LH