What are good lights for growing?

[Shovelhandle]

light bulb conversion:
(1) 400 watt HPS = (10) 54 watt T5HO = (5.5) 125 watt CFL = (42) = 40 watt T12 = (84) 60 watt incandescent lamps = about 50,000 lumen

Now, lumen is relative to our eyesight but PAR is another unit of light radiation used by plants. So usually, a lamp specific for growing or blooming should outperform a standard lamp. I'm now using Eye Hortilux 400 watt HPS Enhanced lamps.