Features: Solar panel kits with solar controller, extension cable with battery clips for marine boat systems. Features a builted-in protections mechanism in the controller to prevent safety hazards such as overcharging and discharging. Eliminates the need for batteries, saving time and reducing maintenance hassles, while providing a direct drive for your devices. For various applications like shed, cabin, gate opener. where 12V batteries is used, and fits for car, , boat, marine, trailer, pumps. Weatherproof design, with a wide ranges of operating , suitable for more equipment and scenarios. Specifications: Component: Solar Panel and Metal Photovoltaic cell: monocrystalline silicon 16V 30W Open circuit voltages: 19.2V Open circuit: 1300mA Working voltages: 16V Working current: 1250mA solar panel size: about 28x28x2cm/11.02x11.02x0.79inch Conversion efficiency: 19.8% Waterproof rating: IP65 life waterproof Package Includes: 1pc Solar Panel 1pc Controller 1pc Battery Clamps 1pc Connecting Wire note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.