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Posted

LEDs, HPS, or metal halide lights all produce ~3.41 BTU heat per watt, so multiply your total grow light wattage times 3.41 to get the added BTU load. Divide that number by 12,000 to get the ton rating. Assuming your room is already conditioned, that will give you the capacity needed to compensate for the lights. 

I can't dance like I used to.

Posted

I have not used led grow lights, but other led do not create heat.

I assume the led grow lights just put out different wavelength to stimulate plants. They may heat also?.

"Life has become immeasurably better since I have been forced to stop taking it seriously."

Hunter S. Thompson

Posted
3 hours ago, jdmidwest said:

I have not used led grow lights, but other led do not create heat.

I assume the led grow lights just put out different wavelength to stimulate plants. They may heat also?.

LED put off little heat. With the more expensive one they put off stronger light but I don't think I need the stronger ones with a Greenhouse. 

My Sister has a cover for hers during the heat of Summer. 

Cover will cost me $150. And I think I will just hook up a Mini Split to help regulate temperature. 

My Son has talked me into using Rain Water from a Holding Tank. My Tap water is 8.5 PH Rain Water will be better. 

oneshot 

Posted
1 hour ago, oneshot 1 said:

LED put off little heat. With the more expensive one they put off stronger light but I don't think I need the stronger ones with a Greenhouse... 

 

LEDs produce the same heat per watt as the others I mentioned. The difference is the light output (lumens) per watt. A 10 watt LED might produce the same lumens as a 100 watt bulb, so the total heat output of the LEDs is less, but the BTU per watt is exactly as I stated.

I can't dance like I used to.

Posted

I got some LED's on our House Plants it's interesting seeing what they like. 

Like I say they are cheap but I think something along this line will work. 

oneshot 

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