Type of panels : Half-Cut Cell * Mono-FacialType and no. of cell : Mono-crystalline 144 (6x12)Maximum system voltage : 1500 (V)Power range : 530W-550WEfficiency range : 20.53%-21.31%Dimensions : 2278 mm x 1133 mm x 30 mmWeight : 26.5kgPerformance Guarantee : 3..