heat issues

hi people , i've been reading these forums for the past 6 weeks or so to take in as much info into growing as i can.

well this is my problem i have a 600w hps with ballast and my cabnet i am growing in is 3ft x 2ft x 6ft.

i have set up a excust fan a fan blowing air in and have a desktop fan inside, so just for a trial run i put the 600w in there with a temp gage and the temps where around the 90 degree mark and i know this is well to high.

so my questions are.

can i buy a cooltube for my light and hope the temps will go down to a ideal temp?

can i buy a different watt bulb for my 600 watt ballast, is it possible to do this?

if the above dont work if i buy this light from ebay would it be alright for the space i'm working in? i only have 2 plants at the moment ( ajans haze #3 femelised) there 2 weeks old and looking nice i have them under 5 cfl's 23w and growing in soil biobiz mix.

link to light:eBay.co.uk: HYDROPONICS GARDENING 250 GROW LIGHT SYSTEM PLUG & PLAY (item 130078629721 end time 20-Feb-07 14:15:54 GMT)

thanks

Quote:

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Originally Posted by BerZerk

hi people , i've been reading these forums for the past 6 weeks or so to take in as much info into growing as i can.

well this is my problem i have a 600w hps with ballast and my cabnet i am growing in is 3ft x 2ft x 6ft.

i have set up a excust fan a fan blowing air in and have a desktop fan inside, so just for a trial run i put the 600w in there with a temp gage and the temps where around the 90 degree mark and i know this is well to high.

so my questions are.

can i buy a cooltube for my light and hope the temps will go down to a ideal temp?

^^ You can buy a cooltube but without a good fan to extract the heat it will not stop your problem

can i buy a different watt bulb for my 600 watt ballast, is it possible to do this?

^ Nope - 600 W ballast needs at least a 600W bulb.. I have heard of people using too large a bulb for a ballast (not recommended) but the other way around will definitely kill the bulb

if the above dont work if i buy this light from ebay would it be alright for the space i'm working in? i only have 2 plants at the moment ( ajans haze #3 femelised) there 2 weeks old and looking nice i have them under 5 cfl's 23w and growing in soil biobiz mix.

link to light:eBay.co.uk: HYDROPONICS GARDENING 250 GROW LIGHT SYSTEM PLUG & PLAY (item 130078629721 end time 20-Feb-07 14:15:54 GMT)

^^ thats a nice light but the light you are using will double your production (at least!) if you can get the heat controlled. Spend the money on a fan or a hood and fan for your light.. you never mentioned if it was in a fixture or not
thanks

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G/L and welcome to the boards!

yeap better fan all the way! invest 50 squid on a inline fan and all your troubles are over! :)

thanks for the replies, i shall be investing in a new inline fan this week, anyone got any ideas of what sort of inline fan i need and a link to there site, around the £50 mark would be nice to.

i have a silver reflected hood but man in that space it was just one major hot spot so i took the hood of and it seems alot cooler in there but still not ideal.

thanks

The Home Depot

here you go...

just have another quick question really, i found a nice inline fan on ebay whats a nice price and i'm thinking of buying two of these for in and out take fans, 1 blowing at the bulb and the other taking the heat away to outside the cabnet.
would this be any good ? it says the Flow rate is 85 litres/sec , would this be ok for my size of space?

they sell reducers aswell, what are these?

link:eBay.co.uk: domus 150mm in line extractor fan motor hydroponics A1+ (item 190081394850 end time 19-Feb-07 17:26:57 GMT)

thanks

Maybe I didnt catch all this but you got a 600 watter in a space 3x2x6. Think the 600 will be plenty o light for the space if you can cool it. Is the ballast outside the closet, that helps a shitload. Look I just went from a 250 watt w/ built in ballast to an air cooled 400 in a closet 5x2x8 and holy shit its cooler than the 250 with less fan. I mean its hooked up to a 150 cfm exhausting out of closet with a 100cfm fan at top o closet that pulls air out of closet thats filtered through a can filter. The temps stay in the mid 70's with the aircooled lamp
where as with the 250 not air cooled I had a hard time keeping it lower than 82 degrees. The exaust fans are roughly 80$ for smaller one and 100$ for bigger one. Even if you dont use a cool tube, which mine is not air cooled seemed to work great for me. I can keeep the light hella closer now. Oh yeah and I got a 16 inch oscillatin stand fan in there that runs on low 24/7, it's quiet as hell.

Good Luck

heres an example of the two exhaust fans I use and the cheap air cooled reflector

heres an example of the two exhaust fans I use and the cheap air cooled reflector. This shit works awesome for the closet and light has a nice footprint

Put the fan centered on the top...put 2 passive intakes on the bottom. Its not so much moving the air as a whole but more of extracting the heat as fast as possible.