**Features** 1. **High Conversion Rate:** The solar panel utilizes an industrial-grade main control chip, resulting in a high conversion rate for rapid charging in strong sunlight. 2. **Strong Adaptability:** The controller features an LCD display with adjustable charging and discharging parameters. Its semi-flexible design allows for bending the solar panel to suit various applications. 3. **Easy Installation:** Integrated overcurrent, short circuit, open circuit, and reverse connection protection are included. The panel is easy to install with four eyelets for secure mounting on roofs, decks, etc. It can also rotate flexibly by approximately 35 degrees. 4. **Stable and Durable:** The panel incorporates a dual MOS anti-backflow circuit for ultra-low heat generation. It has an IP65 waterproof rating, is scratch-resistant, non-foaming, and easy to clean. Advanced polyethylene coating technology is used, and the battery surface is coated with a dark blue reflective film. 5. **Dual USB Ports:** The rear junction box includes dual USB ports for simultaneous, fast charging of two USB devices. It is suitable for charging cars, homes, ships, motorcycles, emergency lights, fans, and more. **Parameters** * Maximum Power (Pmax): 20W * Open Circuit Voltage (Voc): 20V * Maximum Power Voltage (Vmpp): 18V * Short Circuit Current (Isc): 1.1A * Maximum Power Current (Impp): 0.9A * Output: USB 5V, DC5521 18V **Standard Testing Conditions** * AM = 1.5 * Irradiance = 1000W/m² * Temperature = 25°C **Specifications** * Material: ABS * Color: Black * Size: 45 x 30 x 4 cm * Weight: 750 g **Package Includes:** * 1x Solar Panel * 1x Solar Controller (optional) * 1x Car Charger * 1x Battery Clamp * 4x Suction Cups * 2x Mountaineering Buckles * 1x General Instructions