Replacing a light bulb used to be simple. But now that old models of incandescent bulbs have been phased out, we’re swamped with choices. How do we know whether to buy an LED, CFL, or halogen ...

Households can reduce their energy bills and cut their contribution to greenhouse gas emissions by switching to more efficient lighting, but what’s the best strategy to maximize savings in cost, ...

You probably have some type of LED (light-emitting diode) in just about every room in your home, whether it’s in a clock, computer display, appliance or piece audio/video gear, to name a few. And the ...