hi
keeping in mind that they are fog lights not driving light they are very effective at making you more visible have not had a single car pullout on me when there on. As for lighting the road they fill in the darker patch between the front of the bike and the top of the low beam if that makes sense and they light the kerbside up very well which is useful for country lanes.
They can be adjusted to light the road more but that dazzles oncoming drivers although i think alot of the time its more a case of the lights are higher up than on a car so people assume youv'e got the highbeams on
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