It is 100% fit for following cars with factory OEM D3S/D3R HID:

Audi 06~07 A3, 02 and 07 A4, 02~06 A4 Avant, 03~06 A4 Sedan, 04 and 07 S4, 04~06 S4 Avant, 05~06 S4 Sedan, 07 Q7 and RS4.

BMW 07 300-Series (coupe/Sedan/Wagon), 06~07 700-Series, 07 X5, 04~06 325i/325xi and 330i/330xi.

Cadillac 03~07 CTS, 06~07 DTS, 04~07 SRX, 05~07 STS, 06~07 STS-V, 04~07 XLR, 01~04 Seville, 00~01 Catera and 03~06 Escalade.

Mercedes Benz 07 GL-Class and S-Class

Above fitments are just for a reference, many other cars may need it too, please refer to your car's "User Manual" or visit the reference website Bulbs Model Guide . thanks!

Origin: China

Bulb Type:D3S HID Xenon bulb
Working Voltage: DC12V
Power consumption: 35W
Tube voltage: 45V ± 15V
Consumption: 35W (Orginal car lights 55W, saving 40%)
The lamp lighting times greater than 130000
Luminous flux :2500-3500LM (depending on the color temperature of the light bulb)
Life Span :2500-3000 hours (10 times halogen bulb )
Trigger voltage: 23000V

Color Temperature:3000K(Yellow to choice )/4300K(Warm white to choice)/6000K(Cold white to choice )/8000K(White to choice)/10000K(Pink to choice)/12000K(Purple to Choice)
Working temperature : -40 ~105 °C

NOTE:when you order , please leave the massage(Color Temperature) in the order, If not, we will default send 6000K, thanks