One question that arises for me about that research, is why they didn't aim at improving the most efficient manner of lighting, LED's, instead of incandescent?
Also, since the heat in the modified incandescent bulb is not going to be totally dissipated, how hot are they going to get? Will it be so hot that the amount of air conditioning needs to be increased to cover the difference?
I am guessing that incandescent was chosen because public perception is that the color of light from an LED can't be as good as the Edison variety. It can be built to be exactly the same color and current, cheap LED's from Asia operate at 20 percent of the power as similarly bright incandescents.
