The Bosch Pure Light W21/5W is a high-quality automotive bulb designed to deliver reliable and efficient lighting performance. Operating at 12 volts and with a power rating of 21/5 watts, this bulb is specifically designed for vehicles with W21/5W bulb requirements. It provides a pure and bright light output, ensuring excellent visibility and safety on the road. The Bosch Pure Light W21/5W is a dual-function bulb, serving as both a brake light (5 watts) and a tail light (21 watts) in one compact design. It is a dependable choice for various automotive lighting applications, meeting Bosch's high standards of quality and durability