well this thing didnt happen in my car. i tried it today first time on the motorcycle .
it's getting crazy sometimes. i thought and still suspect the cigarette outlet power maybe dont fit well with the V1 ,
but on the end of the ride , i just played with the front light. and noticed that when i'm on idle , or engine off. and swapping between high and low. it will reboot every time !
maybe there multiple issues here, bad connection and V1 doesn't work well when it's around 12V ?
one thing for sure , the 8500-X50 didnt do that. it was connected to the same outlet and worked just fine !