What are good lights for growing?

[OMB]

I wonder sometimes, you guys flowering under t-5's, then you are adding side lighting, and on the floor lighting, and now another bank, but your worried about electricity and heat.

I only run a 6 bulb 4 foot in bloom. 324 Watts makes 1/2 the heat of that 150HPS light...and I really don't need the sidelight due to the way I open and prune my plants so there isn't a bunch of low growth. That way penetration is less of an issue. as well as the need for a sidelight. My sidelight is only a 2 foot 2 buld T5HO...you get more heat from a 26 watt CFL than that put's out.
For small cabinet/closet grows with heat issues I don't think there's a better option other than LED. I'm thinking about doing a straight watt for watt comparison with the T5's and an HPS....we will see.