HLG 300v2 in 3x3 too hot!

Moflow said:
Dims down to 120 watts which is cooler than full blast 275 watts.
Then you can lower light down closer.
It's an A driver so just pop out the rubber grommet on top of driver and using a screw driver turn screw inside anti clockwise.
I'm vegging 6 plants I've just transplanted to 10l pots with ~ 84 watts on 3 x Samsung F strips.
Also, where are you taking the temp to get 90 95?
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yeah i dimmed it after reading your post and finding a vid on youtube. it only helped by a couple degrees. ive got an an acurite thermometer/hygrometer at canopy level (theyre seedlings)
 
quiescent said:
You need a more powerful exhaust to create negative pressure and bring in that fresh, cool air passively.

I'd get a 6 inch inline fan and turn it down to about 75% for a 3x3. You using a carbon filter? Can't imagine a 100cfm fan moving much air through one.
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madvillian420 said:
So i just set up my 3x3 tent and new LED for my seedlings and my temps are at about 90-95. This is obviously too high. Distance from the canopy is 24". Im running one 4" 100cfm exhaust up top and a desk fan inside near one the mesh vents. Temps outside the tent are about 65-70. im not sure if adding an intake would help, or maybe another exhaust? anyone have tent heat issue solutions besides AC?
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In my 3x3 I use a Vivosun variable speed 4 inch 203 cfm with 4 inch filter.. massive negative pressure always on low... damn near too much.. sorta fucks up the plant count in the tent... but it works... give it a try
 
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