Product Specifications

The W21WNA is a precision-targeted vehicle warning lighting bulb, with a rated voltage of 12V and a rated power of 21W, compatible with the standardized W3x16d wedge base. In the model designation, "W" stands for the wide-angle lighting structure, which offers a broad light scattering range and high warning visibility; "21W" ensures sufficient luminous brightness; "NA" corresponds to "Natural Amber", meaning the bulb emits soft yet eye-catching natural amber light, different from ordinary high-brightness yellow light.

The W3x16d base adopts a compact wedge design, enabling easy plug-and-play operation with a secure lock, and is compatible with the lamp assemblies of most passenger and commercial vehicles. This bulb adopts proven tungsten filament lighting technology. The natural amber light has excellent penetration in low-visibility weather such as rain and fog, while avoiding disturbing other vehicles due to excessive brightness. It is mainly used in key positions such as car turn signals and side marker lights, serving as a vehicle lighting accessory that balances safety and practicality.