KINGSOLAR Portable Solar Charger 21W Solar Panel Charger with 2 USB Ports, Waterproof Camping Foldable Portable Solar Charger for Cell Phone Tablet GPS iPhone iPad Camera Electronic Device and More

Product Specifications： Solar Panel Type:KINGSOLAR Conversion Efficiency: 23% Total Power Output: 21W USB Output: 5V 2.4A (4A total) Dimensions: 13.2 x 6.7 x 1.4 inches Features: Environmental Protection Save Energy Waterproof More Efficient Dual-USB Charging Durable and Comfortable Foldable Portable Design Using the most efficient KINGSOLAR solar panel，It converts 21 Watts of solar energy into electricity with a 22%-25% conversion rate. The product is equipped with a bracket, the tilt angle is more conducive to solar energy conversion. 21W refers to the power of the solar panel, which is not equal to the actual output power of the USB port, because there will be some loss in order to maintain voltage stability and safety of equipment during the charging. Although not to be used in raining days due to lack of sun, the solar charger is waterproof (not including the USB output ports) and rugged enough to withstand most weather and environment conditions in the wild. Warm tips： 1:The product can only be charged in ample sunlight or direct sunlight. Do not charge indoors. 2:When it is not in use, store in a cool dry place. 3:This product does not store electricity, you can use it with a battery. 4:The charging speed of solar panel depends on your devices, light intensity and cable used. If you have any problem for our product,such as the product was damaged during transportation or can't work. please contact us at anytime.we will answer your problem in 24 hour.