Feature:1. Made of high-quality materials, environmentally friendly, durable and delicate. It has a high conversion rate.2. Dual output solar panel with USB interface to meet all your needs.3. Environmentally friendly and pollution-free, realizing the conversion of solar energy into electricity4. It has a wide range of applications and can be used in many places, such as: B. Automobiles and small appliances.5. Solar panels are devices that directly or indirectly convert solar radiation into electrical energy by absorbing solar radiation. Compared with ordinary batteries and accumulators, solar panels are more energy-saving and environmentally friendly.Product SpecificationsPacking weight: 780gUSB output: 5VDC output: 20VSize: 280*420*3mmWaterproof rate: IP65Conversion rate: 19.6-20%Number of USB Ports: SingleMaterial: Monocrystalline silicon batteryControllerModel: PWMBuck charging: 28.8VFloat charge: 27.4VUSB output: 5V/3ASelf-consumption: <10mADischarge stop: 21.4VVoltage: DC 12V/24VMaximum solar input: <50VCurrent: 10A/20A/30A/40A/50A/60ARated working current: ≤20ADischarge reconnect: 25.2VWorking temperature: -35℃~60℃Output voltage: 12V/24V automatically distinguish voltagePackage List:1X 20W Solar Panel1X Solar Controller (10/20/30/40/50A/60A)1x alligator clip1X car charger4X suction cups1X General Instructions