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Question

LED lamp have a general life expectancy of

The correct answer is
50000 Hrs.

LED Lamp General Life Expectancy

LED (Light Emitting Diode) lamps are known for their significantly longer operational life compared to traditional lighting technologies like incandescent or fluorescent bulbs.

The general life expectancy for a typical LED lamp is approximately 50,000 hours. This rating signifies the point at which the lamp's light output is expected to decrease to 70% of its initial level (L70 rating), not necessarily complete failure.

Key factors contributing to this extended lifespan include:

  • Solid-state nature: No fragile filaments or glass tubes.
  • Efficiency: Less heat generation compared to older technologies, reducing stress on components.
  • Durability: Resistance to shock and vibration.

Therefore, the most accurate general life expectancy among the options provided is 50,000 hours.

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Important Questions from Illumination

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  3. Light is produced in electric discharge lamps by

  4. ________ lamps consist of an inner discharge tube and an outer evacuated tube.

  5. A mercury vapor lamp gives ______ light.

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