LED light bulb

LED light bulb

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Credit: SCIENCE PHOTO LIBRARY

Caption: LED light bulb. LEDs (light-emitting diodes) use about one tenth of the energy for a given light output when compared with normal incandescent bulbs, instant start-up time and have a lifetime typically of 30000 hours. This bulb has a frosted glass envelope to give a more diffuse light and a screw thread to fit Edison Screw (ES) domestic light fittings.

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Keywords: bulb, cost, diode, domestic, edison screw, efficiency, efficient, electricity, emitting, environment, environmentally, es, friendly, global warming, green, high, led, light, lightbulb, long life, low energy, reduction, saving

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