The Bosch Pure Light P21W is a high-quality automotive bulb designed to provide reliable and efficient lighting for specific vehicle applications. Operating at 12 volts with a power rating of 21 watts, this bulb features the P21W base type, making it suitable for certain automotive lighting fixtures. The P21W bulb is commonly used for brake lights, tail lights, and other rear lighting applications, where it delivers a bright and focused light output. The Bosch Pure Light P21W is engineered for a precise fit and easy installation, ensuring compatibility with various vehicle models. As with all Bosch products, the Pure Light P21W is built to Bosch's high standards of quality and durability, ensuring long-lasting and dependable performance