Light bulb 1077 12V 21/5W BAY15D (10-pack)

1077 12V 21/5W BAY15D Bulb for Trailer Stop and Tail Lights

The 1077 bulb is an essential spare lamp for trailer lighting systems, providing reliable combined stop and tail light functionality. This dual-filament bulb ensures your trailer maintains proper visibility and safety compliance, with the 21W filament for stop lights and 5W filament for tail lights in a single compact unit.

Spare lamp for trailer lights

This 1077 bulb features a BAY15D double-contact socket and delivers 12V operation with dual-filament design for simultaneous stop and tail light performance. The 10-pack provides multiple spare lamps for inventory or fleet applications, ensuring you always have replacement bulbs ready for your trailer lighting needs. Direct fit for standard BAY15D lamp holders on trailer light assemblies.