light difference

I have 6 bulbs on my plants. 26w 5700k. For flowering I have added 1 40w 2700k bulb.
How big would the difference be if I replaced them all with a single 250w hps? This is for two plants.

Big difference! That hps bulb will put out the proper spectrum used during flowering for the plants to use to make some delicious buds! Don't get me wrong, I love cfl's for veggin, i mean i was suprised to get the exact same results vegging with cfl's as i do veggin with my 400 hps without runnin my hid ragged. Basically what i'm sayin, is ur cfl's were great while the gals were veggin, but now that it's time to really get down to business, I"d go with the hps. Good luck!

thanks man