Help with next purchase please!

[BudBoy2]

I don't think you can. Hell I mentioned the company name on here and cause he isn't a sponsor they took it down and warned me. But yes that's the one who did mine. Works great!

I can probably give you a number. ?

 

[TorturedSoul]

After investing in more in ventilation than production I feel a change is needed.

I'm running 4x4x7 tent..

600w HiD (Mh&Hps)
6" Cool tube
6" Inline Fan >> out
6" Ducting >> out

Plus

4" Inline Fan & Ducting <<In

I generally recommend not using intake fans in a space. How are you running your ventilation setup? SEPARATE fan/ductwork dedicated to the light, bringing air in from outside the tent, passing it through the light fixture, and straight out of the tent? With a smaller, separate fan (if required) on its own duct run pulling air into the tent, then out via the tent's fan(/filter)? That's the best ventilation setup, IMHO. It keeps the heat the light generates separate from the tent's general environment. It ensures that the air you're pulling through your light doesn't pick up the scent of cannabis - which tends to make it much easier to deal with, lol. Since the tent, itself, is significantly cooler, less airflow is needed through the tent. This means you're moving less air through your carbon filter and that the air you do move through it is cooler. This results in a carbon filter that lasts longer. This type of setup also introduces the possibility of adding supplemental CO₂ to the grow space, if it becomes possible to actually run the tent's fan only part of the time, on a timer (or if you want to get fancy, a temperature-controlled relay). For example, running the tent's fan for 15 minutes, then running your CO₂ injection device and allowing the resulting higher CO₂ levels to remain in the tent for the remainder of the hour, then running the fan for another 15 minutes and so on, in an endlessly repeating cycle the entire time that your lights are on. You could also set up the tent's fan to run sporadically throughout the lights-off cycle in order to occasionally refresh the air inside and keep humidity levels from building to uncomfortable levels. BtW, when running higher ambient CO₂ levels, cannabis will tolerate higher temperatures than the average best maximum of 86°F-87°F (when the plants are receiving the maximum amount of light energy that they are actually capable of processing). This would mean that you could afford to let the temperature drift up somewhat when not venting. Or, if conditions are at all favorable, to even consider running the tent's fan less (possibly even down to a few times during the lights-on cycle or... none? YMMV, of course.).

 

[GroActive]

I can probably give you a number. ?

I'm UK based buddy I doubt it'll be worth it with fees and shipping.. it's 39.99 shipping alone per heatsink from eBay.