The Osram Original P21/4W 12V 4W BAZ15D Bulb is a set of two warm white halogen bulbs designed for rear reverse lights on vehicles. Manufactured in Germany by Osram, these bulbs have a wattage of 4W and are compatible with 12V systems. The chrome housing and clear lens provide a sleek and high-quality look for your vehicle's lighting system. With a manufacturer warranty of 1 year, you can trust in the durability and reliability of these Euro headlights for your car or truck.