Smurfy... a 400w HPS puts out about 50000 lumens... a 250w puts about 11-25000 lumens... and i have about 5600 lumens to my plant... you will need a little more than that to bring your plants to a good harvest, especially for flower... What u put in is what u get out... and u put in 2.99$, think about it... thats all im sayin. Good luck :thumbsup:

Stay UP :rasta:
!AC420