MechanicalCharacteristics Dimensions:675mm(L)x490mm(W)x30mm(H) Weight: 4.8kg SolarCells:Monocrystallinesolarcells,36cellsina4x9matrixconnectedinseries Construction:Front:High-transmission3.2mmtemperedglass;Encapsulate:EVA;Back:TPT Frame:ClearanodizedaluminumalloyColor:silver