SunGuard SG-4 4.5 amp 12 volt Solar Charge Controller Regulator by Morningstar
A nice small, economical controller for 12V solar panels that produce less than 4.5 amps. Uses the same high performance circuitry as the more expensive SunSaver line. Epoxy encapsuated for marine environments. Easy to connect.These charge controllers are extremely reliable and have a 5 year manufacturer's warranty.