Questionn!!?? ( lighting) hps+cfl -- Need Feedback

I have a 400w MH/hps and a 125w 6500k vitalume.. My question is what will happen if I veg under the MH&cfl for 12hrs and then use only the cfl for the last 12 or 6 hours of the day... depending on if I do 18/6 or 24/0.

Thanks everyone!

in an attempt to save on electricity costs.

your plants will get less light & wont grow as well

the plants will grow slower, and stretch more, which is bad

use the MH for 18 hours a day, give them a dark peroid

How many plants and how tall are you going to veg them?

its 5 plants and im going to veg them for 5 weeks tops. I already have the Mh on 18/6 for now