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 semiconductor material.2. The average life span of a CFL is mach longer than that 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 ?

What is the difference between a CFL and an LED lamp ?1. To produce li

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 semiconductor material.2. The average life span of a CFL is mach longer than that 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 only
C.	1 and 3 only
D.	1,2 and 3
Answer» D. 1,2 and 3