Why dont you just use the 600W HPS the entire time?
JohnnyPotGrower Reviewed by JohnnyPotGrower on . Is this light ok to start with? i have purchased 2 lights to start off growing with they are ,36w philips master PL-L 840/4P 2900 lm, will these be ok ?. i have a 600w hps for later but im unshure about the philips any help would be much apreciated thanks Rating: 5