High Frequency mustpower PV18-1012 VPM Off Grid mppt pure sinewave Solar Inverter 1 years warranty The electrical waveform output of PV1800VPM is a pure sine wave, which has the same quality as utility and/or domestic power. This type of waveform is suitable for most all electrical devices, appliances and tools. This pure sine wave unit provides more capabilities than modified sine wave inverters, because it is a cleaner form of power. The pure sine wave also effectively reduces the noise produced while using appliances. mustpower PV18-1012 VPM High efficiency:93% Power Factor :1.0 Power Rating:1000W Pure Sine Wave 230V 50Hz Overload rating:2000W 5 seconds Inverter no load power consumption:2w Battery Voltage:12V Intelligent 3 stage Battery Charger:10A or 20A (12V) UPS Transfer time: 10ms(For Personal Computers)20ms(For Home Appliance) Maximum AC passthrough:8A Solar mppt Charge Controller:50Hz/60Hz (Auto sensing) Maximum Charge Current:70A Solar Array voltage:max opencircuit 60V Weight: 5.5kg Machine Dimensions (WHD)(mm) 272355100 Pure sine wave output Smart LCD setting (Working modes, Charge Current, Charge Voltage, etc). Bult in MPPT50A solar charge controller Combining solar system, AC utility, and battery power source to supply continuous power Overload, short circuit and Deep discharge protection Cold start function Battery type and charging voltages are configurable including Lithium batteries Support USB, RS485 monitoring function with free CD WIFI remote monitoring (optional, extra $200) Operating Temperature:0°C -55°C Storage Temperature:-15°C -60°C