Some owners have complained that the Lupine beam pattern in the near field is very narrow. It has a killer feature......ability to tune the automatic turn on/turn off. So, it comes on at dusk or in a tunnel but not on a cloudy day. 3 hour battery on standard battery and 6 hours on the bigger battery. I had looked very carefully at this light when I spec'd out a velomobile. The throw is phenomenal......just need a lot of spare batteries. If the controller let you use the daylight power setting say when climbing at night, it could work on brevets for sure.
https://velomobil.blog/en/test-lupin...cle-headlight/
https://thesweetcyclists.com/lupine-...dlight-review/