See also:

Connecting electrical devices
Sockets The lighter socket can be used as a socket for electrical equipment while the engine is running or when the ignition is switched on. The total load of all sockets must not exceed 140 Wa ...

After the ignition is switched off
The roof can still be operated for approx. 1 minute, as long as no door has been opened. ...

The concept
This system projects important information into the driver's field of vision, e.g., the speed. In this way, the driver can get information without averting his or her eyes from the road. ...