New to the forum, one of my pet peeves is light and how it is often abused. I do not use the popular lighting setups, I have never even considered using/owning an HPS bulb.
I only grow for personal use, so do not need very much and I like to breed so I spend most of my time doing that with each grow.
My current setup is an 18 bulb 1000 watt T5 HO that uses 3 6 bulb fixtures in an arc that I call the Tanning Booth. The bulbs are GE 54 watt HO 4100K they have peaks in the red & blue right where plants want em with a smaller green peak. I keep em at least 2 feet above the canopy (when I can LOL)
Here are some pics