This Bulb BAZ15d 12V 21 4W – Stop Tail -2 provides reliable replacement tail light bulbs, making sure your car is performing at its best. It is designed for 12V 21 4W power output with a BAZ15d base. Get the visibility and safety you need with a reliable replacement bulb. Bulb BAZ15d 12V 21 4W – Stop Tail -2 KT50386S