wbd-ok, so if u get 8 42w cfls @900 lumes u dont have a total of 7200 lumes...u just have 8 bulbs each giving off 900 lumes...do i have it right??
your right mate
8x 42watt cfls is 336watts
@900lms each, = 7200lms
thats just maths nothing to do with growing, i have no idea why that guy thinks you will lose any lumens.
but they are spead over a larger area
although you should be getting a lot more lumens than that. i have some 20watt cfls and they give out 1200 lumens each. you sure they use 42watts? to get 900lumes they should only be using around 15watts