with those 3 lights you get 56,000 lumens, with a 600W HPS you get 85,000-95,000 (depending on a bulb). you are not gonna get anywhere close to the results from 2x 150HPS, 1x 250HPS...or any combinations of t-5s/t-12s in comination with lower wattage HPS'. there is no comparison.

my bloom lights come on at 7pm (central time). i will take some pics of a plant under a 600W HPS and you tell me you've seen better with any combination of lights (other than large amounts of high wattage HPS'!)


-shake