ZIZEV Solar Power Bank, Portable Solar Panel Charger, Comes with 2 Clip Hooks, USB 20W Car RV for Mobile Phone, Solar Power Bank Outdoor High Solar Conversion Efficiency Featuring monocrystalline silicon solar cells with a high conversion efficiency of 23%‑24%, this solar panel charger ensures and efficient charging of your devices, even in low light conditions with usb solar panel charger. Versatile Charging Options Equipped with a standard USB output and multiple interface USB cable, this solar panel charger is compatible with a variety of devices including mobile phones, power banks, and more. Stay powered up wherever you are. Special and Weather-Resistant The special PET polymer finish protects the solar panels and equipment from rain or wet fog, making it ideal for outdoor use. It solar cell phone charger can be used in your car, RV, yacht, and more without worry. 1. Monocrystalline silicon solar cells have a high solar conversion efficiency of 23%?24%. 2. Foldable portable solar charger, compact size, thin and light, can be used for mobile phones, mobile power charging, etc. 3. Adopt resin sealing, IP65 waterproof grade, suitable for outdoor use. 4. Includes 2 clip hooks, convenient to hang solar panels to get enough solar energy. Can be used well in your car, RV, yacht,etc. 5. Standard USB output, with multiple interface USB cable,convenient for charging mobile phones and other portable digital devices. 6. The special PET polymer finish your solar panels and your equipment from occasional rain or wet fog. Specification: Item Type: Portable Solar Panel Material: PET Maximum Power: 20W Output: USB 5V Open Circuit Voltage (VOC): 5V Short Circuit Current (Isc): 2000 HA Waterproof Rating: IP65 Solar Energy Conversion Rate: 23%-24% packing list: 1 x Portable Solar Panel 1 x USB Multiple Interface Cable 2 x Hook Note: 1. IP65 waterproof rating, but the USB interface and ammeter are not waterproof, so please keep it away from water when charging..2. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 3. The use of the product is affected by the light and Angle, and the best charging efficiency can only be played under the condition of strong light and direct sunlight. 4. The optimal Angle is the solar panel at 90 degrees from the light. 5. Low light , bad Angle of solar panel, dark shadow, shade, insulating glass and other environments will affect its charging efficiency.