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。

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.

Qoope BAU15S 7507 PY21W LED Bulbs Amber Yellow, Non-polarity 12-24V Super Bright for Turn Signal Tail Brake Lights (Pack of 4)

The BA15S and BAU15S are both Bayonet base with a diameter of 15mm (0.56in) with a single contact on the bottom of the base. BA15S (1156) vs BAU15S (7507 PY21W) base. While both bases have two lugs on the side of the base the difference between them is that BA15s have the lugs at 180 degree and BAU15s has the lugs at 150 degree apart. SHOP FOR ...

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。

由于产品范围广泛，这款灯泡可用于不同应用。 例如，这款灯泡可以用于位置和停车灯、或者摩托车的牌照灯和侧面位置指示灯。

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.

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.

After extensively researching a number of different independent tests, we have chosen the PY21W lamps based on the brightness, durability and lifespan. Will the PY21W Bulb Fit My Vehicle? When looking for replacement light bulbs, there are some important things to consider. The first question one should ask is whether PY21W will fit your car.