Model Number: SPI-4KW-Y1 Brand Name: SunShine Key Specifications/Special Features: FeaturesExcellent performance for double MCU intelligent control technologyApplies to different types of loadsMains supply preferred mode, saving mode and battery preferred mode are all settableWide range, high accuracy and full automatic voltage stabilizationFull digital LED display for visualization of operation status of the equipmentOverall protection functions Mode: SPI 4KW Rated Power 4KW Battery Rated voltage 12VDC/24VDC/48VDC Controller Charge current 20-60A Voltage of floating charge 13.8, x2/24, x4/48, x8/96V Inverter Input voltage 85-138/170-275V AC Input frequency 45-65Hz Charge current 1A~30A (adjustable) Output voltage 110/220VAC/230VAC/240VAC( inversion mode) Output frequency 50/60Hz (inversion mode) Output waveform Pure sine wave Switching time 4~8ms Efficiency >85% (80% resistive load) Overload 110-120%/30S, >160%/300ms Protection function Battery overvoltage protection, battery under voltage protection, overload protection, short circuit protection, over temperature protection Ambienttemperatureforoperation 0 to 40°C Ambienttemperatureforstorage -15 to 50°C Externaldimensions 350*175*550mm