Just a note about PAR values to the fellow non-scientists...PAR value essentially shows how much of the light spectrum plants need is given by the light source. So for 2 bulbs, both 54 watts, one might put all of its spectrum @ 454, so the PAR value for that bulb would be 100%. Another 54 watt bulb might have all of its spectrum at 550, its PAR value would be close to 0. This is just a ridiculous example, but the PAR value is the measurement of choice.
The various bulbs the pr0fesseur has listed have very high PAR values, thus they are the most efficient at giving the plants the light that they want to "see".