The kit instructions claim the D5 should be able to make 2-3 volts DC with the supplied genorator, and the universal mount could be fitted to a larger engine that spins generator with authority to get up to 7 volts, I will have to hunt up my meter to see if that is true.
The photo is of the aquarium pump powered D5 lighting a single LED, I had to get my belt tension just so to achieve this on 2.32 PSI, but we have come far this evening, it's time to make some Steam.
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