hey ive asked this once befor but im rele in denial... basicly i have a 3 ft high space. and a regular hps would prolly burn the fuck outa my plants. but would a 250 or 400 w hps in a cool tube make the space considerably cooler? assuming i have a fan on both sides of the tube ? how close could plants get to the light without being burnt?

ive herd people say they can put there hand right next to there hps with no heat issues. and ive herd others say there plants cant get anywhere close..another thing. would this be possible. say my growcab is aprox

3Ft high x 2 Ft deep x 4 Feet Wide what are the diffrent ways i could mount an hps to make it work? could i say put it vertical ? like high on the top right vertically down. that way i could utilize my horizontal space but would i get throu all that foliage to the plants in the back ?

just haveing trouble thinking ima have to flower wit cfls.
105 watt cfl = 6000 lumens 150 watt = 8000 lumens
150 watt hps = 13,000

so basicly id need alot more cfls to do the same thing as an hps

check this out. Homemade 1000w cool tube! - Cannabis.com Forums Message Boards - Medical Marijuana, Cannabis Lifestyle, Weed, Culture, News. You should look into T-5's for that small of a space.

I've a cool tube...1 fan(6" inline) on one side connected by 6" ducting (200+ cfm) and I can easily touch the cool tube with it only being slightly warm. (250hps).

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Got CFL? http://www.rollitup.org/cfl-growing/71259-cfl-sog.html

how close would plants be able to get to the light?

i'm in your same boat man, i got a space about that big i use to veg under my counter. I use T12 fluoros now but i'm going to use a 4 bulb 4' t5 fluorescent rig with the grow tubes next time around. SOme of the T5 rigs put out comparable lumens and color spectrums of mh or hps systems, use less power, fit in tighter spaces, and don't require elaborate ducting for heat. you might look into those

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i never thought of more floro's as an option. could you give me alittle more details? how well it works, how close plants can get , how much each bulb puts out are they all just 28 watt bulbs?

Thanks McLovin!! That's an awesome thread with a great DIY setup. I'm going to make one of those for my setup too.

"how close would plants be able to get to the light?" <- They could probably wrap around the light and not get hot enough to burn.

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One sec...I am trying to think of something clever...
Got CFL? http://www.rollitup.org/cfl-growing/71259-cfl-sog.html

Yeah, the builder shows a pic of himself holding the glass after it's been on for 6 hours and he said it was about as warm as the top of your dryer after a load of clothes.

ok so now im confused as fuck..... Hps with COoltube or T5 FLoro thing you guys are talkin about the hps right?