Quote Originally Posted by harris7
try not to use the incandescent equivalents. They dont mean anything, all they are is a marketing thing so people can replace the bulbs in their house and buy ones that are the same brightness. When we talk about HPS we dont say their incandescent equivalents because everyone knows they have higher efficiency.

so, if you are trying to figure out the Watts/sq ft you must use the actual watts. and each different light as a different optimum. I prefer to use the lumens/sq ft.
Yuh, I know. I was just trying to explain by example. Maybe somebody else didn't know that. But thanks. Use your MG and HPS, but not everyone does use those types of lights. What was your question?