Reliable and straightforward replacement lighting from Tungsram, this automotive bayonet bulb delivers consistent 12V illumination with a 21 watt single filament design. The P21W format provides bright, focused light ideal for stop, indicator and reversing circuits where a 21W single contact bayonet bulb is specified, offering dependable performance for everyday driving and signalling duties.

• Manufacturer: Tungsram
• Type: P21W single filament automotive bulb
• Voltage: 12V
• Power: 21W
• Base: Ba15s single contact bayonet
• Common equivalent designation in some markets: 1156
• Typical applications: stop lights, indicators and reversing lights where 21W is required
• Design: compact bayonet fit for secure installation

Before purchasing please use the Parts Checker to confirm fitment for your vehicle, as applications vary by make and model. Install according to the vehicle manual and dispose of used bulbs responsibly. This Tungsram bulb is intended as a direct replacement where a 12V 21W Ba15s P21W lamp is specified and provides a simple, effective lighting solution.