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Looking for a reliable, all weather dynamo light for urban use and bikepacking. I'm on the fence about either the M99 DY PRO or the klite race. Any advice? I find the klite products goofy and they look rather cheap. Also, the M99 says it's "not compatible with USB power supplies" what does that mean? It cannot be powered by a battery in case the dynamo hub would fail or speed too low to generate power?