distance between light and plant

well I have been veggin with cfl and flour tubes, i have been keeping them about 2" or so away from the plants and it has been working amazing.

i have 21 plants from seed, so im gonna lose about half of them due to males.
so i will have 10 plants on a 1000 hps i ordered.

i read you should hang a 1000 hps about 4 to 6 feet above the plants. is this correct? casue my ceiling does not go past 6 feet haha. but the height is just a matter of it getting hot on the plants correct? so if i vented the light and room with cold air, and maintaned just above the plants about 75 degreese, then the light can be any distance correct? its all about warmth correct?

thanks everyone

At 75 degrees you can go as low as you want to. I have mine 1 or 2 inches from the top of my tallest plant, they love it.As long as the lights footprint still covers all your plants

awesome! well thats good news. you have a 1000 hps 2 inches away from the top of your plant?

My 1000 is around 12-20 inches away............

jussurphin said:

At 75 degrees you can go as low as you want to. I have mine 1 or 2 inches from the top of my tallest plant, they love it.As long as the lights footprint still covers all your plants

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i wanna see that thousand W HPS 1" away from the top of da plant!!!

how much doesit cost roughly to run a 1000 watt hps?

2 Inches 1000watts ??????

SOMEBEECH said:

2 Inches 1000watts ??????

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it's bullshit man!!! Can't be true

They'll burn for sure, some bodys blowing smoke up some ones arse.

1000 watts 2 inches? Guess you can grow them and smoke them at the same time!

No Way!

I agree as well, i have a 400 watt HPS with a Hortilux bulb, and from 5 inches away it can get a bit on the warm side!

Yea, i have a 250w in a cooltube and i can only get like 6in away. It took a while to figure out just how close i can put it. You just have to experiment with it and you will find the sweet spot. I would think that a 1000w would have to be at least 16 inches away from the plants. But i could be wrong.

well thanks for all the feedback everyone. I will be expiermenting with it, i think ill start with it 18" away and see from there. hanks everyone

I keep my 1000 watt open reflectors about 12 inches from the tops.I keep 600 watt lights about 10 inches and 400 watt lights about 6-8 inches from the tops.A 1000 watt light run 24 hours a day a month runs me about $65.

steezyg said:

i have 21 plants from seed, so im gonna lose about half of them due to males.

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I wouldn't be so sure about that man... My buddies recent crop turned out to be 75% female from bagseed... You never know.

smokingbot said:

I wouldn't be so sure about that man... My buddies recent crop turned out to be 75% female from bagseed... You never know.

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ya well i hope %100 of them are females. but im just saying half just to be safe.

FilthyFletch said:

I keep my 1000 watt open reflectors about 12 inches from the tops.I keep 600 watt lights about 10 inches and 400 watt lights about 6-8 inches from the tops.A 1000 watt light run 24 hours a day a month runs me about $65.

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that is really good info. thanks for that man.

yeah thanks fletch...appreciate the info...one more question.... is it possible to yeild 5lbs dry per crop with 1000 watt mh for veg and 1000 watt hps for flower in soil?

that would melt the top leaves of the plant.

312 they say .5 to 1g a watt that leaves you a little under, if you get it let us know!!!