What is Headlamp?
A '''headlamp''' is a [[light bulb]] mounted on the front of a machine. Normally it is mounted on a [[car]]. It shines forward. It can be turned on and off. It is used to see ahead of the machine so it wouldn't drive into trees or telephone poles. [[Incandescent bulb]]s and a variant known as [[halogen bulb]]s are the most common types. They are normally bright. ==Related pages== *[[Fluorescent bulb]] *[[Mercury-vapor lamp]] *[[Sodium vapor lamp]] {{tech-stub}} [[Category:Light sources]]