Mono-SR-150 SR-160 SR-165 SR-170 SR-175 SR-180 Mechanical Characteristics: Solar Cell: Mono-crystalline 125*125mm(5inch) No. Of cells: 72(6*12) Dimensions: 1580*808*35mm(62.2*31.8*1.4inch) Weight: 15.5KG(34.1lbs) Front Glass: 3.2mm(0.13inch)tempered glass Frame: Anodized aluminium alloy Junction Box: Cixi Renhe PV-RH0502B(TUV) Temperature Coefficents: Nominal operating Cell Temperature(NOCT) 45+/-2C Temperature Coefficient of Pmax -0.48%/C Temperature Coefficient of Voc 0.34%/C Temperature Coefficient of lsc -0.017%/C