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  1. Hi just thought id post this to see if anyones had any experience with dual cfls? As in blue and red spectrum cfl , its my first grow using dual cfl 250watt and im growing cbd crack autoflower from fastbuds im at day 70 and was time to start flushing yesterday after looking under microscope , everythings gone fairly well just a little bit dissapointed in how the buds are looking there not amzingly big but are nicely frosted , im going to flush for prob 2 weeks so mayb more growth to come but just wondering if mayb the light is the issue and would it be better to get a red 300watt cfl for flowering instead of using the dual cfl all the way through? Any info or advice welcome cheers