What is the difference between CFL and LED lamp? 1. CFL uses mercury-v – McqOptions

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1.	What is the difference between CFL and LED lamp? 1. CFL uses mercury-vapor and incandescent to produce light, whereas LED lamp uses semiconductor materials. 2. The average life-span of CFLs is much longer than that of LED lamps. 3. CFLs are less energy efficient as compared to LED lamps.
A.	only 1
B.	2 and 3
C.	1 and 3
D.	all these
Answer» B. 2 and 3

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