Industrial grade wall mount line interactive energy storage 1500VA -1000-watt UPS with a power-full 30 AMP battery charger at 24 VDC to quickly store energy in lead acid, Gel, lead carbon or lithium batteries. The incorporated active voltage regulator protects connected devises from low and high Voltage while ensure proper Amp current is delivered to the batteries. The ES-AVR 1524WM include surge and line noise suppression as well as input ac breaker, output AC breakers and DC breakers. On battery the incorporated highly efficient transformer with IGBT technology produces pure sine wave at 120VAC or 220 based on model. Includes certifications from international regulatory agencies like CE, NOM, TUV, Retie.