True sinewave AC output, Robust industrial design, High surge power output, Powerful 4-stage two output battery charger. 3 charging setting available (Flooded, GEL, AGM), Power factor corrected AC input, Ultra Fast 30A AC transfer switch AC Input Power Boost / AC Input Current Limit. Protected against high/low battery voltage, high temperature, overload,short circuit, high ripple volatge and low AC input voltage. Automatic Standby function to reduce no-load power consumption, Variable speed fan for silent operation, Remote on/off capability, Two Configurable alarm 250v/16A relay, Versatile trigger input. Easy to access connection bay for AC-DC and control wiring