Quote Originally Posted by the image reaper
I no longer use a metal halide, at all ... I use HPS from seed-to-harvest ... :smokin:
I'm just the opposite.... I dont use a HPS at all... I use MH from clone to crop:hippy: usually yeild 6 -10 oz per plant depending on the strain
http://boards.cannabis.com/grow-log/...le-sour-d.html


HPS and MH are run by different ballast.....You can get a HPS or a MH ballast..... and then just buy a conversion bulb

you will have the best of both worlds run by the same ballast