Polycrystalline silicon solar panels, which are easier to manufacture, save power, and have low overall production costs. Positive power tolerance: 0~+ 5W 100% EL double-inspection ensures modules are defects free Modules binned by current to improve system performanceBuilt-in maintenance-free battery, independent output, does not interfere with each other, with functions such as overcharge and discharge protection, overload protection, high temperature protection, open circuit protection and other functions.AC and DC output in two different voltage modes, which can power multiple devices at the same time, 220V/500w output, meeting the backup power demand below 500W.LED solar home lighting system is an off-grid solar generator designed to provide stable and reliable power to homes and communities or areas without or even electricity without access to grid power. The small solar system is characterized by convenient movement, easy installation, and reliable performance, which is very suitable for situations requiring emergency power. It is the ideal, reliable energy source for many applications such as lighitng, radios, fans, TVs, computers, refrigerators. The USB port is compatible with all 5V-USB charging devices. It can also be used as a backup power source in emergency situations.