Crabs

Yes glass from an oil lamp is tempered and it will work fine.

JoseHempSeed

i found a spot to get glass tubes www.c3dglass.com/productpage.htm

also the loss of light is negligible, less than 5%, and the uv is already filtered out bythe glass envelope of the bulb. these things really look like the way to go...

seancharl

has any one else put one of these together.
could any one put a list of supplies and
products i will need to make this. after
i put together the tube and when im ready
to put a reflector on the top, how far away
should i put it. toughing the class or a couple
inches above the tube. thanks

justawannabe

sean- if your putting this light into a grow box i would say forget the reflector and paint all surfaces of the box flat white, if its going in a grow room i have no suggestion

seancharl

its going in a small grow room closet

jayda

Forget the white pant man, use Mylar im sure your local hyrdo shop would have a roll or two but if u cant find that just use some emergency camping blankets, they are hella cheap and only costed me about 3 bucks each Australian this are HUGE . about 2 metres squared so for a grow box or anything they are quite adiquate.

as for the cool tube, you would only be waisting light in my opinion if you still use a hood, you would be much better just gettign a air cooled hood.

__________________
Chips-Dips-Chains-N-Whips

seancharl

yup i just relized that and im looking into some hoods
found some good deals too

skyynestor

The kool tube that I set up allows me to keep my 400 watt HPS 4 inches away from the cola, I think that the intesity of the light at that distance is much greater than what tou would have with an air cooled hood. IMO losing a little light from the glass is well worth it if you can keep it that close. I think that its worth the trouble especially in a small grow space

Attached Thumbnails

 

The Electron

I was thumbing through a magazine at the hydro store and saw this great device that looked perfect for what your are talking about. It was clear plastic tubes coiled around your bulb which circulated water through it. But the water never actually touched the bulb you see? I can't remember the name of this product. If you are interested in it go to your local hydro store and ask about it.

Knore

haha ive been in wonderland or something, i created this thread and totally forgot about it

Glad to see your all still going strong for the Kool tubes, im still making one aswell, just really slowly and progressively.

i want to eventually be able to COMPLETELY control the heat with 2x400w in a single kooltube.