20W Solar Panel Output USB Portable Solar System Mobile Phone Charger Outdoor US
Power: 20W 10W. 20W Size: 300 145 5mm/11.8″ 5.7″ 0.2″. 1 20 W/10W solar charging board. Features: Portable, small size, light weight, sturdy and durable, good quality. Process: EVA laminated. Conversion efficiency: 18.8%.