D2S vs. D2C xenon HID headlights
 

Hi,

I just bought a pair of D2S 6000K bulbs to replace the OEM ones in my 99 A8Q. Or at least I thought I did. The eBay seller sent me a pair of D2C lamps instead. Does anyone know what the difference is? Will they fit (before I start the multi-hour job of replacing them - God I love this car), or doI need to return them?

Thanks