>>1577843if you have the fork crown hole free, (ie, you have discs or cantis, not caliper brakes), how about this?
https://www.bike24.com/p2144817.htmlIt's quite low powered and has a reputable battery meaning a charge will last probably the longest of anything you might get. and it's got that great stvso beam pattern. and it's a more integrated into your bike type so more secure.
if not i'd still recommend german lights, just ones that mount on your handlebars. The quality is high and the beam pattern is just really nice.