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Physics
Types of Lamps
Question

Which of the following is/are energy efficient products?

A
Tube lights
B
Bulbs
C
LEDs
D
CFLs
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Solution
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The electricity used over the lifetime of a single incandescent bulb costs 5 to 10 times the original purchase price of the bulb itself. Light Emitting Diode (LED) and Compact Fluorescent Lights (CFL) bulbs have revolutionized energy-efficient lighting.Because both CFL and LEDS use very less power as compared to bulbs. CFLs are simply miniature versions of full-sized fluorescents.And LED is a semiconductor device.

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