The elite agro 315w should beat a 600w hps due to the improved spectral output (the 3100k) match the ceramatek ballast
http://www.gel-usa.com/products.html with a quality vertical reflector(I would take a vert setup anyday over horz) and it will probably come even close to a 1000w (horizontally positioned) hps in coverage and par value....was not able to run vert with the old cmh bulbs because it tended to not play nice with my remote mag ballasts........but with this new tech it will work nicely
vert reflectors that I recommend
-
http://www.cycloptics.com/ if they EVER release the damn thing to the public
-
http://www.growlite.com/ best reflector on the market hands down...........
oh and this is for anyone that questions the benefits of running vertical reflectors
http://www.youtube.com/watch?v=Bz0n...DvjVQa1PpcFP1Ly_IHaKY4kCI_-jF1bukjBAHI2dDeW4= lol not even close............and that's with the glass shield on, philips cmh is open fixture rated so it will increase it's own values by another 10-15% with it removed..........drool