400w HPS too much?

[La.hoja.verde]

Don't post on here much, but here's a question for you guys.

The box is 2'x2'x4'. Exhaust is at the top through a 4" 80cfm fan & filter, passive intake is 4"x10" at the bottom and a small oscillating fan will be hanging on the side.

So is a 400w hps going to be too hot for this small space? Temps are around 55°F with fluoros, if that matters.

 

[mafia]

I think its going to be too much unless you have an air cooled hood with glass, or atleast a hood that you can run ducting to.

 

[buggin69]

you'd need a cooled hood in that space... not necessarily glassed... but definitely a ducted hood i think

250 might be a better choice... then supplement with CFL if you can get away with it... just a thought




EDIT: no you'd need glass... at best you can get 10 inches from teh 400 without a sealed hood... so that's 12 inches from the ceiling already...down to 3 feet... add in the pots or buckets... 14 inches left now... maybe 18...

def go with 250 or a sealed hood

 

[NewbGrower^.^]

250 I'd say is max... For 2x2x4, it will get the job done

 

[La.hoja.verde]

I've already got the light though, so is there an easy way to make a ducted hood or a proper way to run ducting through/to it?

 

[pdillo]

keep the 400, get a bigger cab!

 

[!!!!!sdpgrow!!!!!]

scrog it man u will get great results

 

[CLOSETGROWTH]

keep the 400, get a bigger cab!

I agree...or a closet

 

[La.hoja.verde]

i'm upgrading the cab in the summer to something bigger, but wanted to try using this light in the mean time.

 

[NewbGrower^.^]

Didn't know you already had it. Just rig up the best air cooled hood or make a Do it yourself cool tube. Keeping the bulb enclosed in glass I think is the only way to keep temps down in your space.

 

[WillMunny]

If your exhaust fan was bigger it would help a lot. My cabinet is 20" x 28" and maybe 7 foot tall, but I have a 600W HPS in the top half and a 400W HPS in the bottom half. My exhaust fan is a bathroom exhaust fan mounted at the top of the cabinet set on a thermostat. Granted I also have the 600W ducted out via the hood, but it still generates heat within the cabinet. The 400W is a ducted hood too but there's no exhaust connected to it. A 4" computer fan likely wont be enough to draw off the heat from the bigger light.

 

[La.hoja.verde]

Thanks for the advice. I'm gonna wait to use it and make a cool tube then.

 

[buggin69]

if you already got the light struggle through until you can up the space... cool tube or vented hood (which will still be handy later mind you)... box fan for a door... whatever