12VDC 150A continuous / 400 Amp in rush current rating. Display shows current battery voltage in addition to any other user changeable settings. Protect your battery by using this to dump / divert your excess power. Excess power can be diverted to a useful device such as a water heater, space heater, etc or it can be dissipated with dump load resistors. Components are mounted on a 3/16" non-conductive plate and pre-wired. Configurable for wind or solar power.