300W Solar Panel Kit Complete 12V USB with 10-60A Solar Controller for Car, Yacht, RV, Boat, Cell Phone Battery Charger Steps for Connecting the Controller (see the figure above) 1. Connect the positive and negative terminals of the battery as shown. The controller will automatically detect the battery voltage. 2. Connect the solar panel to the controller. 3. Connect the load as shown, do not respond reversely. Note: Strictly follow the wiring diagram. Otherwise, the controller may short circuit. The disassembly order is opposite to the connection order. Features: 1. Made of high-quality materials, environmentally friendly, durable and exquisite. The conversion rate is high. 2. Solar panel with dual outputs and USB interface to meet all your needs. 3. Environmental protection and no pollution, realize the conversion of solar energy into electrical energy. 4. Wide range of applications, can be used in many places, such as cars, small household appliances, etc. 5. A solar module is a