brand new and high quality Features: Suitable for solar light, solar light boxes advertising board, solar insecticidal lights, housing solar power generation system, marine solar power generation system, outdoor survival solar power generation system. With buttons, digital display, automatic memory function. Built-in short circuit for protection, open circuit for protection, reverse polarity for protection, overload for protection. Solar Panel Power System Kit only, other accessories demo in the picture is not included. Specifications: Solar Panel: Maximum Power: 20W Rated Power: 10W Maximum Voltage: 21V Working Voltage: 18V Current: 0-1000MA Solar Controller: Optional Current: 40A,50A,60A Voltage: for DC 12V / 24V Inverter: Output Waveform: Modified Sine Wave Output Power: 1000W Input for DC Voltage: 12V (note: the positive and negative poles can not be connected reversely, it will be damaged) Output AC Voltage: 230V 50HZ Output AC Socket Specification: Universal Socket Low Voltage Alarm: 10V DC0.5V Low Voltage Protection: 9V DC0.5V Overvoltage Protection: 15.5V for Protection Function: overload, short circuit, overheating, reverse polarity, undervoltage/overvoltage This product does not include batteries. Material: Polysilicon + Electronic Components Package Size: approx.360x260x60mm/14.17x10.24x2.36in Color: As pictures shown Quantity: 1 Set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Solar Panel 1 x Controller 1 x Inverter 2 x Connecting Lines 1 x English Manual