how the beam is spread matters ,

night riding in the forest is a different use than commuting in a city.

My recent buy: the compact bright B&M Eyc headlight, and linetec toplight, Powered by a shimano hub dynamo,

The headlight is close to the ground , which shows potholes as shadows better , higher up will shine further ..

but there is the old foot-candlepower ratio, further the light has to reach he more diffuse
and less bright on the ground.