I'm adding a 600w dimable ballast package and I havea choice of reflectors
air tube or air cooled. (or perhaps a parabolic reflector for vertical)
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both systems c/w 600w MH and HPS, hangers, timer and are the same price...any suggestions
Using
4'x4'x6.5' tent
8" carbon filter and 720cfm inline fan with speed control (have 8" to 6" adapters)
DWC and coco if that makes a difference
I have a vented hood on my 1000W HPS, two 6" cool tubes on my 400W HPS lights, and have used the 400W with open-air bat wing reflectors.
Obviously open air reflectors are going to put the most amount of heat directly into the tent.
There are a few key notes between cool tubes and regular vented hoods that, at least in my opinion, should come into consideration:
If heat is an issue in your tent; you may want to consider the cool tube route. The cylindrical shape of the tube offers the greatest efficiency for air flow and should, in theory based on what I've read (I'm deaf as hell, I'm not the guy to be giving sound advice... OHHH man is that a pun? I think I just made a pun!

) should be less noisy than a similarly sized hood. Reason being that when air flows through a rectangular chamber versus a cylindrical chamber, there are more potential areas for air turbulence to occur, which diminish air flow. Turbulence is the swirling of air, and as it increases, decibel levels increase as well.
Cool tubes are typically also smaller in overall footprint and I've found them to be a lot lighter and easy to work with personally.
The downside:
Typically much poorer light coverage versus a normal vented hood reflector. My two cool tubes have wimpy little reflectors that are connected together with a thin band of metal. They work for what I use them for, but there better options out there if light coverage/spread is a big factor for you.
Vented hoods will typically give you better light spread/coverage, but at the expense of slightly higher temperatures.
I don't have any experience with parabolic so I unfortunately can't really comment on those.
If it were me and I knew my temps wouldn't be too much of an issue, I would go with the air cooled (not tube) hood for your setup. Your 720 CFM fan is pretty massive for that sized tent brother haha! I won't poke fun at you though; I have an 8" 720 CFM myself that I sometimes play with for ventilation. The 8 to 6" reducer is going to cause you a lot of noise right there; so I'm going to go out on a limb and guess sound isn't too much of an issue (that 8" fan itself is a noisy beast!)
Hope that helps brother; just my "My 2 cents"
:karma Cloud: