500W Pure Sine Wave Low Frequency Power Inverter

500W pure sine wave low frequency power inverter  Description: Low frequency pure sine wave combined inverter & charger.Quiet,Website:http://www.sturdyenergy.com, high efficiency operation Front panel LED/LCD indicators and adjustable switch selectors Selectable settings for flooded lead acid, gel, absorbed glass mat (AGM) batteries.   Features 10A ~30A automatic 3-stage battery charger Charge current is Adjustable(25% ,50% ,75%, 100%) Inbuilt pure copper transformer Low battery, overload, and high battery, over temperature protection Battery/AC priority(option) RS232/Remote switch(option) G
500W Pure Sine Wave Low Frequency Power Inverter