Although there are Optimum types and wattages of light.
You can use MH all the way through, alot of growers do. My hps capacitor went out, so I hooked up my 1000MH and
I just changed from 1000MH agro gold to 1000hps hortilux for flower...I think I will put agrosun gold in the veg room permanately. The enhanced bulb is along the lines of what you are talking about, I believe.

I was going to grow all the way with the agrosun, but I noticed the fan leaves growing bigger and bigger, while the buds although present, seemed smaller than last grow, when I used horti, all through flower.

When I changed over hps/Hortilux. It seemed much brighter, than the MH. Now I will see if the Horti' makes the buds emerge as hps is supposed to do. Hope this helps.lw