Manufacturer item number: R-MINI2-ML-BLK
Compatible with virtually all common e-bike drives from 5-21V.
The soft start of the LED and the stable, waterproof housing ensure a long service life.
Can only be mounted on bikes with MonkeyLink stem!
MonkeyLink
MonkeyLink is a connection standard for mechanical and electrical accessories on e-bikes. It allows you to mount lights in no time at all without having to plug in a cable.
This makes retrofitting and converting lighting on MonkeyLink-ready bikes a breeze. 

Of course, there is also an anti-theft function for long-term use.