原厂信号灯带有金属底座，如同所有欧司朗原厂产品一样，具有可靠的原厂配套质量。 由于产品范围广泛，这款灯泡可用作不同应用的备用灯。

iBrightstar 9-30V Super Bright Low Power 7507 PY21W BAU15S 2641A LED Bulbs with Projector Replacement for Turn Signal Lights, Amber Yellow

PY21W，功率是21W，灯泡直径是26.5mm，总长是52.5mm，也可称为BAU15S，形状与P21W相像，只是两个触角成150度，而P21W是180度。 常见使用车型如比亚迪F3、奔驰S系。

Find the right ACDelco Clear PY21W Incandescent Bulb for your vehicle at O'Reilly Auto Parts. Place your order online and pick it up at your local store for free.

ORIGINAL signal lamps with metal bases feature - like all ORIGINAL products from OSRAM - a reliable OEM quality. Due to the wide product range, the lamps can be used as original spare lamps for different applications.

After extensively researching a number of different independent tests, we have chosen the PY21W lamps based on the brightness, durability and lifespan.

The PY21W automotive light bulb is a highly efficient and reliable lighting solution for various cars and vehicles. It is a single filament bulb that provides bright and clear illumination, making it an ideal choice for turn signals, brake lights, and parking lights.

OSRAM DIADEM CHROME signal lamps have a strikingly exclusive design: their chrome look made possible by a cutting edge interference and absorber coating. The lamps emit amber light only when operational. At other times, they are almost invisible and have no irritating color effects.

2024年12月13日 · 型号详解：P21W灯泡的功率为21W，灯泡直径为26.5mm，总长52.5mm。 此外，它还有其他的称呼，例如BA15S或1156。 这款灯泡因其特定的尺寸和性能，被广泛应用于多种车型。 2. 应用范围：许多车型的后雾灯都采用了P21W灯泡，如赛纳和新阿图。 这些车辆使用这种灯泡，为驾驶者提供了清晰的视线，确保了行车安全。 3. 技术差异：单丝一触P21W与PY21W的主要区别在于灯丝设计。 PY21W的齿距为150，而P21W的为180。 这种差异可能 …

iBrightstar 9-30V Super Bright Low Power 7507 PY21W BAU15S 2641A LED Bulbs with Projector Replacement for Turn Signal Lights, Amber Yellow