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1. |
What is the difference between a CFL and an LED LAMP ?1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material.2. The average life span of a CFL is much longer than of an LED lamp.3. A CFL is LESS energy-efficient as compared to an LED lamp.Which of the statements given above is / are correct ? |
A. | 1 only |
B. | 2 and 3 |
C. | 1 and 3 |
D. | 1, 2 and 3 |
Answer» D. 1, 2 and 3 | |