Beurer TL 30 Mode D'emploi page 13

12. Mains part
Model no.
Input
Output
Protection
Classification
EE 16-08
100–240 V ~ 50/60 Hz
12 V DC, 650 mA, only in connection with TL 30
The device is double protected and therefore corresponds to protection class 2.
Polarity of the the DC voltage connection
IP22, protection class II
13