Xenon Bulb Type - W211

Hi all,

I was at MBS today and they attempted to fit some bulbs I bought (D2S), upon taking one out Carl and Colin looked rather miffed at what type it was as it has the ignitor as part of the bulb.

They didn't know what type it was so my old ones went back in and they asked me to have a look online.

I take it if it has the ignitor attached to it then it is a D1S type looking on here/google?