H4 halogen bulb covering both low and high beam in a single unit.
The UNITEC HALOGEN H4 car bulb is a standard 12 V halogen lamp rated 60/55 W with an H4 base, made for headlights that combine low and high beam. Supplied as a single bulb.
H4 base with dual filament
Two filaments inside the quartz tube handle high beam (60 W) and low beam (55 W), so one lamp serves the whole headlight. The H4 base with its three locating tabs drops into standard sockets without an adapter.
12 V for cars and motorcycles
The bulb runs on the standard 12 V vehicle electrical system. Replacing bulbs in pairs is recommended so both headlights keep an even beam output.