Features: 1. Made of high-quality materials, environmentally friendly, durable, and delicate. It has a high conversion rate. 2. A dual output solar panel with USB interface can meet any of your requirements. 3. Environmentally friendly and pollution-free, achieving the conversion of solar energy to electrical energy 4. It has a wide range of applications and can be used in many places, such as cars and Small appliance. 5. Solar panels are devices that directly or indirectly convert solar radiation into electrical energy by absorbing sunlight. Compared to ordinary batteries and rechargeable batteries, solar panels are more energy-efficient and environmentally friendly. Parameter: Open circuit voltage (VOC): 20V Maximum Power: 10 W Maximum power supply voltage (vmpp): 18V Short circuit current (): 0.6A Maximum power supply current (impp): 0.4A Output: USB 5V. DC 12V-18V tandard test condition AM=1.5 rradiance=1000W/ emperature=25 Tip: The controller must be connected to a battery in order to function properly. Solar panels need to be exposed to sunlight to function properly. Please do not place the panel under the windowsill or glass, as this will affect the power generation effect. Please do not use sharp objects to scratch the surface of the solar panel.When charging with a solar charger, please place the solar panel facing upwards in direct sunlight to the best charging effect. Material: polysilicon colour: Black Package Contents: 1 x solar panel 1 x solar controller 1 x car charger 4 x suction cup 1 x alligator clip wire(lf you need to connect the controller, please divide this line into two sections to connect) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.