1, manufacory 2, easy to use 3, lowest price 4, many certification, CE,IOS Solar cell panel:Poly TypeVoltage: 17.5V Current work: 1.14AOpen-circuit voltage: 21.5VShort-circuit current: 1.31ACE CertificateWarranty:5 years Product warranty10 years of 90% power output25 years of 80% power outputThis small solar panel can be used in Caravan,Camper,Solar street Light and other lots of applications. ...