If I remove 2 of the 4 tubes from my overhead fluorescent fixtures, will I actually save 50% on lighting electricity? IOW, when you remove 2 lights from a 4 light fixture do you save half of the energy? I’m wondering how much electricity is wasted in the “conversion” in the ballast, whether or not the tubes are present. My office is too bright anyway. I have “daylight corrected” tubes in a very white and often sunny environment. I’ve already removed all of the inner pairs of tubes and really …