The buds that are grown with a light 12 inches away from the canopy look nothing like the buds that are grown at 36 inches away..

If you can not keep the temp down or cool the canopy then raising your lights may be your only HOPE...

But if you want forearm sized buds and actually get your monies worth from your electricity bill, the lights often need to be no higher than 12-18 inches...

A 1000 watt HPS with no C02 should yield 2lbs... This requires adequate ventilation and perfect light proximity..

A 1000 watt bulb can do a great job on a 3 X 3 grow space....

After that, the lumens are being compromised...

and NOW you KNOWM

attached are 2 pictures of a grow room with 2 - 1000 watt HPS bulbs on a light mover that are never more than 4 inches from the canopy...

iloveyou
Garden Knowm Reviewed by Garden Knowm on . 1000w HPS covers an area of? Hi, Just a quick question. What is the space to be used with a 1000w HPS light? I'm asking because I was wondering how much of these lamps I'd need to cover a space of 11x10. Rating: 5