from Gus in Crivitz, WI:
#133
How do LED’s work?
LEDs use light and energy more efficiently.
LED stands for light-emitting diode. LEDs are small light sources that become illuminated by the movement of electrons through a semiconductor material. LED lighting is efficient, durable, versatile and long lasting.
LEDs emit light in a specific direction, whereas an incandescent or fluorescent bulb emits light — and heat — in all directions. LED lighting uses both light and energy more efficiently. For example, an incandescent or compact fluorescent bulb inside of a recessed can will waste about half of the light that it produces, while a recessed down light with LEDs only produces light where it’s needed — in the room below. To learn more about LEDs, visit energystar.gov.
Published Sunday, April 19, 2009