Wrong statement about LEDs (life, colour, efficiency, brightness)

1. A.
   LEDs are energy efficient.
2. B.
   LED have long life time if properly manufactured.
3. C.
   Brightness of light emitted by LED cannot be controlled
4. D.
   Colours produced by LED do not fade out.

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1. A.
   LED's have long lifetime if properly manufactured.
2. B.
   Colours produced by LED's do not fade out.
3. C.
   LED's are energy efficient.
4. D.
   Brightness of light emitted by LED cannot be controlled.

Tap an option to check your answer.