Osram P21/5W BAY15d Twin Pack 12V Tail & Brake Light Bulb

Keep your vehicle’s rear lighting bright and road-legal with the Osram P21/5W BAY15d Car Side / Tail Light Bulb. This twin pack provides two straightforward dual-filament replacements, ensuring you always have a spare on hand or can renew both sides at once.

Designed for 12V electrical systems, this bulb delivers 21W for the brake (stop) light and 5W for the tail light function, offering reliable illumination whenever you need it. The BAY15d bayonet base ensures a secure, tool-free fit in compatible sockets, while the robust construction helps maintain consistent performance over time.

Key Benefits

• Dual-filament design combines brake and tail light functions in one unit
• Twin pack offers excellent value and convenience
• Simple bayonet fitting for quick and easy installation
• Ideal for maintaining compliance with rear lighting requirements

With a compact height of 33mm, this bulb is designed to fit neatly into standard rear light units. Whether you are replacing a failed bulb or upgrading to a fresh set, this twin pack provides a practical, no-fuss solution to keep your car’s rear lights working effectively.