@those who have a cool tube
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Monkeyfloss
Active Member
All depends on ambient temps, ventilation, light wattage so it varies quite a bit.
1. Just put your hand at the height of the plant canopy and feel for heat.
2. Watch out for slight burning at the tips.
I had one of those cooltubes (cops smashed it through spite when I was raided and they couldnt find shit)
1. Just put your hand at the height of the plant canopy and feel for heat.
2. Watch out for slight burning at the tips.
I had one of those cooltubes (cops smashed it through spite when I was raided and they couldnt find shit)
Oldreefer
Well-Known Member
My plant canopies are 8-12 inches from my cooltube...400w hps...with one centrifan exhausting thru tube with another 4" centri fresh air intake blowing on tube itself...In a tent, adjustability for temp control is a must...I do suppliment ac into tent at times thru ducts....
Serial Violator
Well-Known Member
About 8-12 inches i normally have mine
cool, just wondering, does having the light higher above the canopy spread the light better?? as having it real close will leave some bits of plants a bit shaded compared to others wont it... a mate of mine has his light about 2 and half foot above canopy, looks quite high, but it seems hes able to illuminate a bigger space this way...
Na hes got a 600 aswell, but without a cooltube, hes got a wider reflector, although his temps are very high. I need to try and make a big reflector really but im shit at makiing things like that, anyone got any advice on making a bigger reflector for cooltubes and how to fit em?
Nitegazer
Well-Known Member
Not sure what you're saying here. Air cooled reflectors come in all sizes, you don't have to build one. Here is an inexpensive large reflector that is air-cooled:
http://www.hidhut.com/catalog/deluxe-air-cooled-reflector-p-65.html
^^^ its perfectly simple what im saying....I already have a cooltube (glass air extracted tube with a lamp in it) and they come standard with a crappy little reflector. So instead of ditching the cooltube which cost me £40 and buying a large air cooled hood for £100 i may aswell try and get hold of a reflector to attach to the existing cooltube, making it better...get what i mean? lol
Nitegazer
Well-Known Member
Yep, now I get it.
Wish I could help-- I have a feeling that by the time you get the parts for the reflector and deal with retrofitting issues, your better off cutting your losses (or maybe selling them).
Every lumen counts, and producing your own with a reasonable footprint will be a challenge.
One idea: hang the bulb vertically under one of these: http://www.hidhut.com/catalog/vertical-burning-reflector-parabolic-p-713.html
Good luck!
Wish I could help-- I have a feeling that by the time you get the parts for the reflector and deal with retrofitting issues, your better off cutting your losses (or maybe selling them).
Every lumen counts, and producing your own with a reasonable footprint will be a challenge.
One idea: hang the bulb vertically under one of these: http://www.hidhut.com/catalog/vertical-burning-reflector-parabolic-p-713.html
Good luck!
