Incandescent bulbs might not be dead yet
Can incandescent bulbs be as efficient – or even more so – than LEDs? More than 95 percent of the energy that goes into incandescents is wasted, most of it as heat, so researchers at MIT and Purdue University struck out to see if that could be changed.
A conventional heated metal filament, with all its attendant losses, served as the basis. But... » read more