Anybody use a "noon time" light in the flower area?

I just started using one the other day, realized I had an extra ballast. So, in the flower room between the two HPS, I now have a verticaly hung 400w MH that comes on for 4 hours a day, in the middle of the light cycle.
Anybody else done anything like this? I figure its like high noon for them…lol

And now that I put some thought into it, I wonder if you could run the MH for the 12 hours, and turn the HPS on for the 4? Wonder how they would respond to that…

@SomeOldGuy, the metal halide is a 400w vivosun grow. Ill post a pic of its spektrum off the box.

Vader uses those “sabers” works great for side lighting
Much Love
Monsanto