Product Specifications

The PR21W is a special-purpose vehicle warning lighting bulb with a rated voltage of 12V and a rated power of 21W. It emits red light and is compatible with the standardized BAW15s single-contact offset-pin bayonet base. In the model designation, "P" stands for the parabolic reflective structure; the light is directionally focused after being reflected by the inner wall, featuring a long irradiation distance and strong warning focusing effect. "R" corresponds to the red light spectrum, whose light is striking and intuitive, with much higher warning visibility than ordinary warm yellow light. The 21W power rating can ensure stable high-light output to meet the core warning needs of vehicles.

The BAW15s base has a diameter of 15mm. Its offset-pin design can prevent reverse installation of the bulb, ensuring accurate connection between the positive and negative poles of the circuit. With firm and convenient plug-and-play installation, it is compatible with the taillight and brake light assemblies of most passenger vehicles. This bulb adopts proven tungsten filament lighting technology. The red light has excellent penetration in harsh environments such as nights, rainy and foggy days, and is not easily disturbed. It is mainly used in key warning positions such as car brake lights and rear position lights, serving as an important accessory to improve vehicle driving safety.