As to led vs halogen headlights distance, I would like to explain to you as below.

Most of halogen headlights distance is about 60-70 meters, but led will be 120-150 meters.

Because led is much brighter than halogen headlights.

For example, halogen headlights are about 55w, but led headlights will be 70-80w.

But during foggy days, halogen headlights distance will be longer than led.

Because halogen headlights better penetrating than led.

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