It is an independent power system that can be used in remote mountains, etc. It generates electricity by sunlight during the day, and by generating electricity by wind power generators during rain or night, it generates stable electricity without being bothered by time and place
Normal batteries are naturally discharged and difficult to use in disasters and emergencies due to poor management, but they combine sunlight and wind power to emit light even if all power is cut off in disasters, natural disasters, power outages, and...