growing one or 2 auto at most witch w for my hps

k i will grow at most 2 plant with mh hps but i don't wanna do overkill i just wanna know what the best watt to get the most out of it thx

I'm about to harvest 10 autos under a 600w hps and I'm under doin it with the wattage, for 1 or 2 plants I would say 150w hps from start to finnish would be fine, only thing you need to keep an eye on is the temperature since hps are notorious for large amounts of heat build up especially in small grow room/tents

http://htgsupply.com/Product-FLORALUX-150w-HPS-Mini-Grow-Light.asp

get somethin like this

its got a built in air coolable hood itll help keep the heat down and its pretty cheap

shouldn't i go with at least a 400w or 600w dimmable in case i get the love for it and go from 2 too 4 in a few month

really all you need is 100w a plant
that is what i would consider minimum
honestly with the foot print of even a 250w hps you could probably grow 4 on a scrog
if its just 2 plants you could go with like 400 w of mixed spectrum cfls
or maybe induction lamps i found a cheap one on ebay 250w if i remember right ill look for it
its just the bulb and ballast but its a mogul base so almost any vertical cone hood would work for it

and i agree more then what you need is always better
a 400w would probably keep you happy im going to get 2 of these
http://www.ebay.com/itm/Apollo-400-Watt-400w-MH-HPS-Grow-Light-Lamp-System-Set-for-Plant-Growing/190843921052?rt=nc&_trksid=p2047675.m1851&_trkparms=aid=222002&algo=SIC.FIT&ao=1&asc=261&meid=8913995952974184577&pid=100005&prg=1088&rk=1&sd=230840062756&
and 2 6" 400 cfm fans in a 4'x5'x5.5' room

im in Canada sadly so the only good thing i saw for the buck is http://www.ebay.ca/itm/400W-HPS-MH-Digital-Ballast-6-Deluxe-Air-Cooled-Tube-400-Watt-Kit-H009-/290911871478?pt=LH_DefaultDomain_0&hash=item43bbb2e1f6 seem nice and gotham hydro seem ot have a great custom service