Really don’t get handlebar lights that much, half the time they’re pointing in the wrong direction. Much prefer a nice helmet light that’s always shining where I’m looking…
with a light on your handlebars, you get shadows behind all the little lumps and bumps, you get an increased sense of depth.
or at least i do, with my rubbish eyesight…
and a little light* on my head pointing where i’m looking.
(*not so bright that it fills in the shadows cast by my bar light)
i find the bar/head combo better than just one really big bright light.