The DRM Dynamo Regulator Module is a compact electronic voltage and current regulator for DC generators. It can be used as a replacement for many model regulators used in cars, trucks, motorcycles, tractors, and boats. In most cases, it can be mounted inside the case of your original regulator. Or it can be used all by itself.
DRM comes calibrated to match your dynamo, including voltage and current limits.
DRM comes in two variations: DRM has dimensions of 60mm x 55mm x 31mm (2.4″ x 2.2″ x 1.2″) and can accommodate generators up to 30 Amps.
See the Dynamo Regulator main page for further details.