My first couple of auto grows we're under about that much CFLs. Indoor growers have used florescent lights for decades. I think a big part of the surge in autoflowers is related to the timing of LED grow light development.
The ability to bloom under 20+ hours of light is what makes autos competitive in their short lives, so high efficiency lighting was pretty critical to their widespread popularity.
If all we had was HPS or CFLs, we probably wouldn't have ever left the lowrider phase.
Best of luck, I'm gonna go hug my Quantum Board now.