550w Monocrystalline Solar Panel For Sale Features Off-Grid. Half-cell design. Operates at a lower temperature. Equipped with anti-soiling film. Self Cleaning. Reliable and flexible product range. Mechanical characteristics Cell Type: Mono Crystalline Number of Cells: 144 Glass: Iron tempered glass Output Cable: 450mm. Glass: 3.2mm solar glass. Frame: Anodized aluminium. Weight: 27.5kg Dimensions (cm): 227x113x3 Electrical characteristics Max Power: 550w Short Circuit Current (A): 13.74 Open Circuit Voltage (V): 49.97 Voltage at Maximum Power (V): 42.05 Current at Maximum Power (A): 13.08 Module Efficiency: 21.31%.