Illuminate your vehicle with confidence using the Tek Automotive 435 H21W Bulb. This miniature halogen bulb is engineered for versatility, ideal for brake lights, indicators, reverse lights, and fog lights. With a power rating of 12V 21W and a BAY9S base, it ensures reliable performance and easy installation. Ensure you have an ample supply with the pack of 10, offering convenience and value. Upgrade to Tek Automotive for premium lighting solutions that prioritize safety and functionality.