Standard P21W signal bulb with BA15s base — two per pack, so both sides get replaced at once.
The NARVA P21W automotive bulb is a 12 V incandescent signal bulb for brake lights, indicators, rear position lamps and reversing lights. Each pack contains 2 bulbs.
BA15s base fits standard signal sockets
The single-contact bayonet fitting twists straight into the socket — no tools, no adapters. A single filament design makes it the direct replacement wherever the carmaker specifies category P21W.
Two bulbs per pack for replacement in pairs
Signal lamps are best changed on both sides so brightness matches — one pack covers both. Keep the spare in the boot for a roadside fix.
Specifications
General
NARVABrand
P21WBulb type
Brake lights, indicators, position lamps, reversing lightsApplication