Morningstar ProStar 30 Amp 12/24 Volt Charge Controller Morningstar's ProStar is the world's leading mid-range solar controller for both professional and consumer applications. This second generation ProStar: Adds new features and protections using highly advanced technology Provides longer battery life and improved system performance Sets new standards for reliability and self-diagnostics Standard Features: Estimated 15 year life PWM series battery charging (not shunt) 3-position battery select: gel, sealed, or flooded Very accurate control and measurement Jumper to eliminate telecom noise Parallel for up to 300 amps Temperature compensation Tropicalization: conformal coating, stainless-steel fasteners & anodized aluminum heat sink No switching or measurement in the grounded leg 100% solid state Very low voltage drops Current compensated low voltage disconnect (LVD) LED's indicate battery status and faults Capable of 25% overloads Remote battery voltage sense terminals 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 Rated Solar Current: 30 Amps Rated Load Current: 30 Amps System Voltage: 12/24 Volt Warranty: Five years