environment easy mcq

Which of the following is a benefit of using LED lighting over incandescent bulbs?

  1. Higher energy consumption
  2. Shorter lifespan
  3. Lower energy consumption and longer lifespan
  4. Higher heat emission

Answer: Lower energy consumption and longer lifespan

LEDs use up to 90% less energy and last 25 times longer than incandescent bulbs, reducing electricity demand and waste.

Topic Green Technologies and Innovation
Exam Relevance SSC, Railway

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