Feature: 1. Achieved the conversion of solar energy to electrical energy, which is eco‑friendly and pollution‑free. 2. Features dual USB and DC output, it can charge two devices at the same time. Made of monocrystalline silicon solar cells, the efficiency is as high as 21%. 3. Adopt superior materials, non‑toxic, durable and sensitive. EVA+PET front panel, good flexibility and light weight. 4. Configure 12V DC5.5x2.1, 5V USB output interface, dedicated for charging 12V battery and 5V equipment. 5. With 4 suction cups, installation is more convenient. IP65 waterproof, no need to worry about light rain in outdoors. 6. With a 12V/24V PWM solar controller, it automatically recognizes 12V/24V, dual USB output, and the maximum current is 2.5A. 7. Large LCD display, adjustable charging and discharging parameters, with power‑off memory function, 10A/20A/30A current optional. 8. Come with a clip and a car cigarette lighter, which can be used in a wider range. 9. Can be used as an alternative charger for car, trucks, caravans, boats, motorcycles, motor home batteries or any 12V lead-acid batteries, but also for emergency lights, advertising lights, traffic lights, electric fans, solar pumps. Specification: Condition: 100% Brand New Item Type: Solar Panel Color: As picture shown Solar Panels: Power: 20W Voltage: 18V Junction Box: 1xDC + 2xUSB Maximum USB Output: 5V 2400mA / 1500mA Output: 12V 1200ma Material: Monocrystalline Efficiency: 21% Panel Material: EVA + PET Panel Size: Approx. 420 x 280 x 2.5mm/16.5 x 11 x 0.1in Controller: Adaptive Voltage: 12V/24V USB Output: 5V / 2.5 A Optional Current: 10A, 20A, 30A Function: LCD Display; Dual USB Charging Interface; Power Display; Voltage Display; Adjustable Charge and Discharge Parameters; Optical Control + Adjustable Delay . Package List: 1 x Solar Panel4 x Suction Cup1 x 12V Clip Power Cable1 x 12V Cigarette Lighter Plug Power Cable1 x Connecting Cable1 x PWM Solar Controller1 x PWM Solar Controller Manual