Genuine Osram Original P21/4W (BAZ15d / 566) 21/4w 12v Clear Bulbs 7225-02B (Pair) Specifically designed to withstand road vibration and provide longer life than traditional bulbs Filament and gas mixture have been engineered for improved longevity Meets industry regulations for performance, while bettering life expectancy Produced by a trusted OEM automotive lighting manufacturer Set of 2 bulbs