There is no bulb with zero watt consumption. Even a small LED indicator consumes power, though it's a fraction of a watt. The 'zero watt' lamp is, in fact, a 15-watt lamp. Conventional ...

Technically, it is not possible to light an electric bulb without drawing input greater than zero watts. Zero watts is actually not zero, but refers to the minimum wattage. The inaccurate electric ...

Few talked about solid-state lighting -- known as light emitting diodes or LEDs --except as futuristic technology that would probably come of age in 2020 and beyond. Most consumers considered them ...