Grow Tent and a 400 watt HPS

sgmetal75 · Jun 14, 2011

I have a 3x3x6.5ft grow tent. I was wondering if a 400 watt HPS will too hot for a tent that size. I have 2-4" ducts, one up high one down low.

I currently am running a 150 watt HPS and its ok but Id like to upgrade if possible. It does get warm in there, but my fans are crappy.

Any thoughts?

VICTORYGARDENSHYDRO · Jun 14, 2011

get a 400 watt ceramic metal halide bulb, it runs a lot cooler then a standard M.H

GidgetGrows · Jun 14, 2011

I'm running a 400 watt with the glass on the "air cooled" reflector in a 4 x 4 tent. I leave it open to room ventilation, if you have duct and ventiliation you should have no problems. But I know that the glass blocks some of the heat.
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I don't have a thermometer in there or I would give you a degrees.

DSB65 · Jun 14, 2011

A 400 would be perfect..but you will need a inline fan on top..

MidnightJoker · Jun 15, 2011

I have a 400w HPS/MH running in a 3x3x5 tent and everything is fine...I wish that my tent was as high as yours.

Xcon · Jun 15, 2011

DSB65 said:
A 400 would be perfect..but you will need a inline fan on top..

^this

Depending on your ambient temps, you'll need at least 150 cfm.

lince · Jun 15, 2011

MidnightJoker said:
I have a 400w HPS/MH running in a 3x3x5 tent and everything is fine...I wish that my tent was as high as yours.

Which fans/ventilation have you got for those 400W ?

MidnightJoker · Jun 15, 2011

lince said:
Which fans/ventilation have you got for those 400W ?

I have a 6" inline fan with passive intake. I am set to get a Phresh Filter to go along with that.

Grow Tent and a 400 watt HPS

sgmetal75

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VICTORYGARDENSHYDRO

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GidgetGrows

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DSB65

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MidnightJoker

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Xcon

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lince

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MidnightJoker

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