[Aushiker]

I was looking for folks experiences with a Busch & Muller LUMOTEC IQ Cyo e-bike light and came across this thread which I believe has some misleading information in it.

Dynamos, bicycle hub dynamos are not really dynamos, they are magnetos, that is they produced AC power and hence dynamo lights are designed for AC power. The power from e-bike batteries is in the form of DC power which is different. Now I understand that a bicycle lights designed for dynamos may work with DC power but it is reasonable to expect the LED to burn out in due course due to the nature of DC power (sorry lost the link on this).

Busch & Mueller and Supernova and Philips all have e-bike specific models which work off DC power, not the AC power that comes from a dynamo. I am not aware of Schmidts making e-bike lights and wouldn’t expect them to, given they are a dynamo manufacturer. Also care should be taken in particular with the Busch and Muller models as they use the same product names for their dynamo powered lights as they do for their e-bike (DC) powered lights. The item number is the critical identifier.

E-bike owners should really be using lights designed to operate on DC power either at higher voltages or via a DC-DC converter, not use AC powered lights … it would not be ideal to have the LED go a ride in my view.

All the above notwithstanding, if anyone has any experience with the latest Busch & Mueller LUMOTEC IQ Cyo T (Item No. 175Q75/6TSNE-07) I would love to hear your experiences.

Regards
Andrew

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