Which energy efficient lamp type is free from mercury?

Which energy efficient lamp type is free from mercury?
A . Compact Fluorescent
B . High Pressure Sodium
C . Light Emitting Diode
D . T-8 Fluorescent

Answer: C

Explanation:

Light Emitting Diode (LED) is an energy efficient lamp type that is free from mercury. Mercury is a toxic metal that can pose health and environmental risks when released from broken or discarded lamps. LED lamps do not contain mercury or other hazardous substances, and they also have longer lifespans and lower energy consumption than other lamp types12.

Reference: No mercury Lights | LEEDuser; LED Lighting