need help on choosing a light

i was gonna get a 600 watt hps/ 600 watt mh but wondering if its gonna be to big for my area rough estimate is 3x3 by 5 feet tall will it burn my plants should i just use the 400 watt hps not sue any advice would be much appreciated

The 600w is quite a bit more efficient. Seems perfect for your dimensions. You'll need a cool tube or similar.

honestly you should consider florescent's for the veg part of that grow its more than capable of supporting that area.
way less noise.... and a lot cheaper in electricity. flowering i would go with the 400 metal halide that may even be
more then you need. get a t5 florescent you will be surprised what kind of monsters its capable of growing.

pC

well the setup that i want to get is a 6 inche cooled reflecter will that be good i figured haveing bigger light in small area will give me more yield is this true

yea its true.......... but theres over Kill with your setup. thos are noisy lights bro. and with that sodiom your going to be produceing alot of heat. about how many plants do you want to fit in that area. you might wanna take a look at this site. http://www.indoormarijuanaseeds.com/advanced-indoor-cannabis-growing-techniqes/low-stress-training-lst-growing-marijuana.html

its a good way to maximize your yeild let me kno what you think

I was using 42w cfl's, but by the time I had 9 of them in there I was using almost as much electric as a 400hps and also as much heat. So I took them out and put the 400 hps in. Mine does not seem very noisy, but if you get a digital ballast you wont have that problem. And they (the ballast) does not heat up like the magnetic ones. And use HPS for flower not MH.