UPS, pure sine wave 1.input voltage:12V/24V/48V ... power:1500W 4.output :low frequency 1.Output waveform:pure sine wave 2.input voltage:12V/24V/48V3.output ... short, Over voltage, Low voltage, Low battery voltage, Surge protectionOverload Protection100-120% 30 sec, Over 120%, 100ms. > ... 200% surge power under DC mode soft startEnvironment temp. 0-40CHumidity 20 ...