21/4 W ball bulb, socket with staggered pins, e.g. for W210
This bulb is used in many vehicles, mostly as a combination of side light and parking light.
Please note: there are very similar lamps with 21/4 W, but they are not identical and do not fit in the same socket due to other pins. Therefore, please check the vehicle or in the vehicle documents, which light bulb is required.