I was curious about the benefits of LED over conventional lighting. Turns out it's more than just a money-saver.

White-light sources based on reliable and energy-efficient LEDs have only recently been made possible through developments in semiconductors (Fig. 1 shows a white-light LED in action).It is ...

Smart lighting sensors are transforming the management of energy consumption in homes and enterprises. By automating ...

They've had a good long run, 134 years, but come January most screw-in incandescent lightbulbs will have been phased out because they use too much energy ... LED, $25, for 6-inch recessed lights.