1. That is alarm lamp

2. Emergency and alarm lamp with a video camera

3. Blaulicht, Bus und Bahn, [30] : flashing alarm lamp, Bus and Railway - local clubs and private museums open the doors, first weekend in may.

4. Blaulicht, Bus und Bahn, [34] : flashing alarm lamp, Bus and Railway - local clubs and private museums open the doors, first weekend in may.