KOMAES 140Watts 12 Volts Polycrystalline Solar Panel Perfect for 12-volt battery charging or multiple panels can be wired in series for 24/48-volt battery charging or for grid-tied applications Diodes are pre-installed in junction box and a pair of 30 inches cables with MC4 connectors comes with the panel automatically High modules conversion efficiency. Ideal output: 700 watt hours per day (depends on sunlight availability) Features: Long service life ;High efficiency solar cells; Special aluminum frame design; Advanced cell encapsulation Applications: Solar power stations;Rural electrification,small home power systems;Power supply for traffic,security,gas industry;12V and 24V battery charging system;Other industrial and commercial applications