I would go with the 600's, if you get the Philips SON-T bulb you will get 92,000 lumens per bulb. 600's do have the most lumens per watt and do run a lot cooler then 1000w but you are going to pay a lot more for two 600's. with a 6X4 room that gives you 24 sqft, with a 1000W thats 41 watts per sqft. with two 600's its 50 watts per sqft. you want 45 to 65 watts per sqft to get the best results.


green leaves
Str8jeepin4pack Reviewed by Str8jeepin4pack on . 2-600's or 1000 hps which one should i buy to fit the most plants under .I apprecciatte all the help .Thanks Rating: 5