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sundaytoker
08-24-2006, 03:31 AM
I'm getting a hps lamp for my flower room. My tray will be 3'x3'

Will a 400 Watt be enough for that area?
BukDatAss
08-24-2006, 04:27 AM
Yea you'll go great with that
bongerstonerd00d
08-24-2006, 05:02 AM
That"ll work. But I'd grab a 600 watt, aint much difference in price and you will get some huge buds. If you went with a digi ballast it would use just about the same amount of juice as a 400 watter with standard ballast. Remember the goal is 50 watts per sq. ft. to grow em the size of your forearm:rasta:

Just 'member, with HID lighting comes heat, and lots of it. Make sure ya got a plan to deal with it so you dont cook yer plants to medium well.


b0nger
Tyman4000
08-24-2006, 01:57 PM
what about a 400w hps with enclosed ballast in a closet with exhaust venting with two desk top fans?
pinkchick
08-24-2006, 02:28 PM
Desktop vents will not be sufficient for a cab with a 400 lamp. You will need to get decent ventilation, best more than 400m3/h - and I strongly suggest a carbon filter.

I am running a 410m3 vent with a 500m3 carbon filkter, a 400W lamp, all in a 3'x2'x6' cab - and I am having difficulties with the temperature. Meaning I will have to increase the passive intake....