Quote Originally Posted by slowthestone
175 watts will get ya started sure...won't do ya much good as they mature. You'd have to move the light around all the damn time to keep the plants from wondering where the sinshine went off to.

175 watt MH is somewhere in the ballpark of 13-15k lumens.
yea...you should buy a HPS when you flower, for the reddish colour spectrums in it, MH bulbs carry a high blue spectrum which is good for veg but need reddish yellow for budding...

175w MH um... in High Times magazine they say you can successfully grow 8-15 plants under a 250w HPS...so I'd say 6-12 or so... correct me if i'm wrong, but i'm just going alogn with what High Times said