get my plants to flower
 

Ron,

I've switched from a metal halide light to a sodium one for some plants I have growing indoors to go to the flowering stage. Do I still need to cut back the number of hours to get my plants to flower, or will the sodium light do the job? Thanks.

12 on 12 off unless they are indeterminate plants like tomatoes then they will continue to flower all year long unless it gets to hot like mine did.