This BAY15D navigation bulb with vertical filament is a 24 V, 25 W halogen bulb for replacement in compatible, type-approved navigation lights. The bulbs are supplied in a pack of 10.
The vertical filament and the offset bayonet pins are designed to correctly position the light source in the lantern's optical system. The BAY15D socket has two contacts and offset pins, so the bulb must be installed in a fixture with the corresponding socket and configuration.
The bulb can be used in compatible Utility, Hella, DHR, and Aqua Signal navigation lights when the lantern requires a 24 V, 25 W, BAY15D socket, vertical filament, and offset pins. Always check the lantern's voltage, wattage, and socket before replacement.
Documented compatibility
Utility 78: 11.427.01, 11.427.02, 11.427.03, 11.427.04, 11.427.05, 11.417.01, 11.417.02, 11.417.03, 11.417.04 and 11.417.05 when operating at 24 V.
DHR 11.418 series: 11.418.01, 11.418.02, 11.418.03, 11.418.04, 11.418.05, 11.418.06, 11.418.07 and 11.418.08.
DHR 11.420 series: 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.
Variants 11.420.04 and 11.420.07 use a 24 V, 10 W bulb and are therefore not compatible with this 25 W version.
Key featuresHalogen bulb for navigation lights
Voltage: 24 V
Wattage: 25 W
BAY15D socket with offset bayonet pins
Vertical filament
For compatible, type-approved navigation lights
Supplied in a pack of 10.
