Q. |
What is the difference between a CLF and an LED lamp?
1. To produce light, a CLF uses mercury vapour and phosphor while an LED lamp uses semiconductor material.
2. The average life span of a CFL is much longer than of and LED lamp.
3. A CFL is less energy-efficient as compared to an LED lamp.
Which of the statements give above is/are correct? |
| (a)only 1 | | (b)2 and 3 | (c)1 and 3  | | (d)1, 2 and 3 |
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