300W Solar Panel Kit, Complete 12V USB Controller with 10-60A Solar Cell for Cars, Yachts, RVs, Boats, Mobile Phones, and Battery ChargersController Connection Instructions (see diagram 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 connect them in reverse.Note: Please follow the wiring diagram strictly.Failure to do so may cause a short circuit in the controller.The disassembly sequence is the opposite of the connection sequence.Features:1. Made of high-quality materials, it is environmentally friendly, durable, and refined. It has a high conversion rate.2. Dual-output solar panel with USB port to meet any of your needs.3. Environmentally friendly and pollution-free, it converts solar energy into electricity.4. Widely applicable, it can be used in a variety of applications, including cars and small appliances.5. A solar panel is a device that converts solar radiation directly or indirectly into electricity by absorbing sunlight. Compared to conventional batteries and rechargeable batteries, solar panels are more energy-efficient and environmentally friendly.Specifications:Name: Flexible Solar PanelMaterial: Polycrystalline SiliconSolar Panel Power: 20WSolar Panel Voltage: DC 12-18VController Peak Power Supported: 300WUSB Output: 5VNumber of USB Ports: 2Open Circuit Voltage (VOC): 5VShort Circuit Current (ISC): 3AOutput: USBDimensions: 435 * 200 * 2.5mmPackage Includes:1 x Solar Panel2 x Alligator Clips1 x Car Charger4 x AccessoriesNote: The solar panel power is 20W, and the controller supports a maximum output of 300W.1. Please allow 1-3cm (0.4-1.18") for slight differences due to manual measurement and different display settings.2. Due to lighting and screen variations, product color may vary slightly from the image. Detailed Notice