The ES-3000 backup power supply is one of the outdoor portable power supply products of our company,Using aluminum alloy shell material, light and portable, the appearance is fashionable and generous, the core uses a power type of LiFePo4 batteries (33140), using dual-phase inverter fast charging technology, without external adapter. Provide two different voltage modes: AC output and DC output to meet the power demand of users. This product can be used as UPS power and as outdoor emergency backup power.