Somebody made a proper test with 2 lights on a dynamo, the results are that it only makes sense from 25km/h or higher speed.
https://fahrradbeleuchtung-info.de/zwei-scheinwerfer-nabendynamo
@sohi started
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Somebody made a proper test with 2 lights on a dynamo, the results are that it only makes
sense from 25km/h or higher speed.
https://fahrradbeleuchtung-info.de/zwei-scheinwerfer-nabendynamo