BAY15D bulb with vertical filament 12 V / 25 W for navigation lights

This BAY15D bulb with a vertical filament for navigation lights is a 12 V spare bulb with a nominal power of 25 W. It is intended for type-approved navigation lights that require this combination of socket, voltage, and power.

The bulb features a BAY15D socket with two contact points and offset bayonet pins. The height offset of the pins acts as a mechanical key, and the bulb must therefore not be confused with BA15D bulbs with parallel pins. The vertical filament is a key part of the specialized design for navigation lights.

The spare bulb is documented for Utility 78 navigation lights with item no. 11.417.01, 11.417.02, 11.417.03, 11.417.04, 11.417.05, 11.427.01, 11.427.02, 11.427.03, 11.427.04, and 11.427.05.

It can also be used in DHR navigation lights with item no. 11.420.01, 11.420.02, 11.420.03, 11.420.05, 11.420.06, 11.420.08, 11.420.09, and 11.420.18. The family is also specified for selected navigation lights from Hella and Aqua Signal, but the specific light model must be designed for BAY15D, 12 V, and 25 W.

The catalog package contains 10 units. Always check the light's prescribed socket, voltage, and power before replacement. This 25 W variant must not be replaced by the family's 10 W or 15 W variants unless the light's specification explicitly requires it.

Spare bulb for navigation lights
Voltage: 12 V
Power: 25 W
Socket: BAY15D
Vertical filament
Offset bayonet pins
For documented Utility 78 and DHR lights
Pack quantity: 10 units.