Among all types of light bulbs, the most energy efficient is___.

Filament lamp

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Arc lamps

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LED lamps

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Discharge lamps

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Solution

The correct option is C
LED lamps

There are mainly 6 types of lamps namely Incandescent, Fluorescent, Discharge, Compact Fluorescent, Light Emitting Diode, and Arc lamps. Among these lamps, the most efficient and energy saving lamp is LED lamp. It works at low power and there is no filament in it so no loss of energy in the form of heat.

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