I think I'm going to go with this HPS for my 3x3x6 tent. COOL TUBE with XL WING - iPower DIMM 600w 600 watt HPS MH Grow Light System Kit | eBay
Cooling it with what?.. it's gonna get hot in there.. spring for a cooltube... for sure Sent from my SM-S727VL using Tapatalk
In fact that's probably too small for anything but LED.. too much heat.. Sent from my SM-S727VL using Tapatalk
6' ceiling will be kind of tough to work with LEDs unless he gets a bunch of low watt ones. A foot of soil and a food above the lights only leaves 4' for plants and the distance between the canopy and the lights. And unless he goes DIY he'll have to likely deal with that hotspot at such a close distance. Not that a 600w in such a small space would work without A/C (or really cold ambient air either).
He should be fine as long as he puts the pot on the floor and does some lst Sent from my SM-S727VL using Tapatalk
I'd be cooling it with something like this . 6" GROW LIGHT EXHAUST KIT 6 IN. INLINE DUCT FAN WITH 6.5 FT. CLEAR DUCT & CLAMPS | eBay
Exhaust fans don't cool the grow. They move air. Your ambient has to be low enough for the temp under the light to be on average low enough for the plant. Exahust fans exist to keep a grow space from getting hotter and hotter. And to supply fresh co2 if you aren't in a sealed garden.
Should I just buy this? Will I still have heat problems? Complete 4 x 4 Grow Tent Soil Kit Package w/600W HPS HID, Electronic Ballast + | eBay
That's $1200. Why would you need all of that stuff? 600w in a 4x4 is very hot and you will need an a/c to cool it or very cool ambient air. Look at getting a 400w. Still hot, but not nearly. Sent from my Moto G (5) Plus using Tapatalk
I’m sorry but half of you on here are talking utter crap. I’m running 2 600s in a 8x4x6 if you use vented hoods (6inch) with a good fan 400m2+ you can easily keep a room cool. My rooms running at 24c , I’ll be adding a 3rd vented hood in a week so I’ll have 1800w. Last grow I ran a 1200w meizhi and 2 600w hps and temps was only 27. You want a good exhaust fan and one to blow through your light. Sent from my iPhone using Grasscity Forum
Buy a dimmable ballast then when plants small run it at 250w then 400 then 600 Sent from my iPhone using Grasscity Forum
Exhaust fans don’t cook the grow? Are you serious? You can use a big exhaust fan which will in turn passively pull air into the tent....hot air out , cold air in. It’s called negative pressure. Sent from my iPhone using Grasscity Forum
As long as your exhausting the hot air into another room e.g not back outside the room the tent is in then you’ll be fine. I’d go for 600w dimmable hps. I ran 3x600 in a room double your size and temps was fine. Unless you live somewhere seriously hot. You want a small intake fan if one at all. Big exhaust and big fan to Cool your light. If you have more air coming in then going out then you will have positive pressure ( tent will blow up ) and smell will leak through gaps in tent. You want negative pressure ( more air out then in ) so it’s sucking tent in so 0 smell leaks out. Sent from my iPhone using Grasscity Forum
You just said exactly what I said. They pull (aka move) air. You need to have cool ambient air to pull in or an A/C inside the tent. Let's say your ambient is 80 degrees. No amount of fan is going to bring that below 80. How could it? Fans move air. A/C units cool the air. If it's already cool then you just need to move it. Unless you're saying a fan and A/C function the exact same way.
I live in England , my ambient isnt same temp as my tent. So moving air does cool my room. Sent from my iPhone using Grasscity Forum