Features: Widescreen LCD display, check the working status at a glance; Smart online design, high performance & configuration; Intelliget software management, keep PC data safe; DC 12/24V design, extra long working time patterns; Input Voltage 145~275Vac Input Frequency 50Hz±5% Output Voltage(battery pattern) 220±10%Vac Output Frequency 50Hz±0.2% Output wave true sine wave Transfer time 4-6ms Out battery DC voltage name 48V12AH Size mm(W×D×H) 430×195×355 N.W(kg) 21.4