Multiple choice general knowledge

Which is the most inefficient type of lights?

  1. CFL

  2. LED

  3. Incandescent bulbs

  4. Tubelights
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C Correct answer
Explanation

Incandescent bulbs are the most inefficient type of lighting, converting only about 5% of energy into visible light and 95% into heat. CFLs (compact fluorescent) are more efficient at ~20-25% efficiency, while LEDs are the most efficient at ~40-50% efficiency. Tubelights (fluorescent) are also more efficient than incandescent bulbs.

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