1. TUV,IEC,CE,UL,cUL,MCS,ISO,Kiers 2. A grade silicon solar cell made 3. Warranty:25 years 80%, 10 years 90% Features:•Our solar panel is designed according to and complying with all requirements in IEC 61730 and IEC 61215 ed2(Certified by TUV Rheinland ) •We use on our solar panel white tempered glass, EVA, weather-proof substrate film and anodized aluminium frame to provide adequate protection ...