Cycle Electric 12V Generator with Regulator Features: Manufactured to H-D specifications for restoration purposes Manufactured by skilled craftsmen, each unit is fully tested Regulators have variable amperage output, producing more amps when cold for faster charging Feature the unique concept of a built-in regulator and a simple two-wire hookup The last generator you'll need to buy All parts are interchangeable with OEM (except end cap/regulator) Made in the USA Note: Low output version is for bikes with small battery in wrap-around oil tank.