Quicky

[pudder]

I have one quick question if anyone can answer this.

I am working on setting up a SCROG. Now I was going to use a 400 Watt HPS. But was wondering if a 250watt HPS would produce almost the same effect as the 400 watt.

I am using a cabinet that is 4Wx3Dx5H. with a total of 12 square feet and and a total of 60 cubic feet. The output of the light in question is 26,000 lumens.

I wanted to cut cost a little and still end up with around the same yield or close to it at least.

pudder Reviewed by pudder on 11-26-2007. Quicky I have one quick question if anyone can answer this. I am working on setting up a SCROG. Now I was going to use a 400 Watt HPS. But was wondering if a 250watt HPS would produce almost the same effect as the 400 watt. I am using a cabinet that is 4Wx3Dx5H. with a total of 12 square feet and and a total of 60 cubic feet. The output of the light in question is 26,000 lumens. I wanted to cut cost a little and still end up with around the same yield or close to it at least. Rating: 5

[pudder]

oh yeah and one more question. if i were to change the color of the lens of a bulb for instance does that change the spectrum at all. say a yellow spectrum bulb covered with a blue colored sheeth? not sure just seen some tubes and was curious.

[PharmaCan]

The 400w is 50% weaker than what you need for an area that size. even with a good reflector you'll get air buds around the periphery.

PC :smokin:

[pudder]

oh so what wattage would you suggest then?

800 watt to 1000 watt? I am guessing.

[DurbanStone]

20-50 watts per square foot, the more the better.

[pudder]

by the way PC love the sig


"Let the old men who make the wars, fight the wars."

agreed...........

[pudder]

20-50 watts per square foot, the more the better.

Forgot about that rule. Wow my heads gone today. yeah thanks for the reminder. I will calculate and figure out what is exactly needed.

[pudder]

ok so that is 600 watts of light for the 12 square feet I have planned at 50watts a foot. Ok I will just go with teh 1000 watt HPS then. might as well so I have the light when i need it.

[DurbanStone]

600 will work....4x4....

[DurbanStone]

600 will work....4x4....

** 3x4=12x50=600