The Volvo FE uses the 1156 bulb for both the front and rear turn signals across the 1992-1997 model years.
The 1156 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized North American standard used in the United States and Canada.
The 1156 bulb operates on a 12-volt electrical system and draws 21 watts, which is typical for incandescent automotive turn signal applications.
As a single-filament bulb, the 1156 serves one dedicated function per socket, distinguishing it from dual-filament types that handle multiple lighting roles from a single unit.
The 1156 uses a BA15s bayonet base, where "BA15s" denotes a bayonet cap with a 15mm base width and a single contact pin, which determines physical fitment into the socket.
Because the front and rear turn signal positions on the Volvo FE share the same 1156 specification, a single bulb type serves both locations across all listed model years.
The BA15s base is not interchangeable with the BA15d base, which carries two contact pins rather than one, so substituting a dual-contact bayonet bulb into the Volvo FE's turn signal sockets would be incorrect regardless of similar physical sizing.