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For reference here is the beam pattern on a decent american headlight sold by trek, an american company, under the bontrager brand, for commute/road use, for about $130. Not sure if this counts as "hyper specific expensive" or "chinkshit", perhaps both, it's schrodinger's bike light
As we can see the beam is somewhat stretched horizontally which makes sense, but there is no cutoff, thus allowing it to be mounted over or under the bars and it makes no difference
