Description PWM series battery charging (not shunt) LCD Display shows battery voltage ,solar amps and load amps 3-position battery select: gel, sealed or flooded Very accurate control and measurement Jumper to eliminate telecom noise Tropicalization: conformal coating, stainless steel fasteners anodized aluminum heat sink Current compensated low voltage disconnect (LVD) LED's indicate battery status and faults Capable of 25 percent overloads Electronic Protections Short-circuit - solar and load Overload - solar and load Reverse polarity Reverse current at night High voltage disconnect High temperature disconnect Lightning and transient surge protection Loads protected from voltage spikes Automatic recovery with all protections Specifications:Model PS-30M Battery VDC(voltage direct currency):12 or 24 Solar Amps:30A Load Amps:30AWeight:1.1lb ProStar Model Specifications 12 or 24 volt 30 amps What's in the box: 1PCS Morningstar Prostar PS-30M,Solar Battery Charge Controller