The MDC2412005 is a DC/DC power converter that takes 24 Volts DC input and will output 12 Volts DC. Cuts DC power to create low amperage, regulating output. Low heat with synchronous rectification technology. Full load efficiency above 90%, small size, just 66 x 60 x 22mm with insulated metal heat-sink enclosure. Cost effective for pumps, LED lights, small motors, etc.