In a _____ headlamp, the lamp housing, bulb, and lens are separate units allowing for replacement of just the bulb.

• A. Halogen
• B. Composite
• C. LED
• D. Sealed Beam

Answer: (B)

A headlamp with separate lamp housing, bulb, and lens describes a composite design. In composite headlamps, the bulb is a replaceable component inside a housing, with the lens and reflector forming separate parts. This allows you to swap out just the bulb when it burns out, without replacing the entire unit.

Sealed-beam units, by contrast, fuse bulb, reflector, and lens into one sealed assembly, so the bulb can’t be replaced separately. LED setups use solid-state light sources rather than a replaceable bulb, so the description doesn’t fit as neatly. Halogen is a bulb technology that can be used in either sealed or composite designs, but the defining characteristic here is the independent bulb within a separate housing and lens—that’s the composite configuration.