digi ballast question.

Which one of these would be better for a 2.5ft x 4.5ft closet? Closet is also about 8 ft tall. Just concerned about heat, but also want to max my lighting for the plants.

Here are the two diff ones I was considering:

600w - http://www.htgsupply.com/Product-Digital-Greenhouse- 600w-HPS-Grow-Light.asp

400w - http://www.htgsupply.com/Product-Digital-Greenhouse- 400w-Grow-Light.asp

Also, I assume I can use MH bulbs with the HPS ballast (just not the other way around unless it's a conversion bulb)... can anyone verify this??

to answer your last question, yes, most digital ballasts that i know of can fire both mh's and hps bulbs both..

thx, anyone else for the first question?

beefcakez said:

thx, anyone else for the first question?

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I looked at them, go with the 400w, because It will be a work horse for veg and flower.

I still got my 400w from 02, but just use for veg now

Why 400 over the 600 though? Less heat or?

beefcakez said:

Why 400 over the 600 though? Less heat or?

Click to expand...

yes less heat.You can go with the 600w, just go air cooled.

I just find my self using 400w, 1000w more then 600w?

Look at Virtual Sun too. I'd go 400 for heat and look at cool tubes'.