I've had about a dozen night rides with the Lupine SL-SF light system. The light connects to the motor and draws power from the Brose, so there is no additional battery required. It has a high/low beam switch on the handlebar that is very practical and reliable. The light runs as a daytime running lamp until it starts to get dark, at which point the low beam kicks on automatically. I typically shut the DRL off for daytime rides, but leave it on if I'm riding in later afternoon. There have been a couple instances of an error code coming on when I first turn on the bike since install, but I have found that if I reboot it is fine. Lupine's US team warned that there had been issues with the new Brose motors and their light so I was prepared for much worse. I have a 2020 Levo Comp so it is the most current motor. The only other issue was the light shutting off while riding one time. I rebooted and it was fine. Of course I wear a helmet light too so I've always got a back up. At first I was kind of frustrated by the cables creating shadows when the light was on, so I routed them above and below the light and held them in place with zip ties and this gave my completely unfettered lighting. It makes 1300 lumens with the 12v system in the 2020 which is more than ample. All in all it has been the single best improvement I've made to my bike and I'm looking forward to riding all winter. This light is a beautiful thing. I must also say that the folks at Lupine US were GREAT to deal with... Here is the link for the light. Lupine headlight for e-bikes with Brose drives