Format 125mm* 125mm± 0.5mm, diagonal: 165mm Thickness 200um± 20um Front( -) Silicon nitride anti-reflection coating, 1.5mm wide front silver bus bars Back( + ) Full aluminium back surface field, 2.5mm wide ( silver/ aluminium) soldering pads Electrical Characteristics Efficiency( % ) Pmax( W) Vpm( V) Ipm( A) Voc( V) Isc( A) 17.75 2.74 0.522 5.245 0.629 5.593 17.50 2.71 0.521 5.212 0.627 5.569 17.25 2.68 0.518 5.169 0.626 5.536 17.00 2.64 0.515 5.129 0.624 5.525 16.75 2.60 0.511 5.085 0.622 5.511 16.50 2.56 0.509 5.030 0.621 5.494 16.25 2.53 0.506 4.988 0.621 5.542 16.00 2.48 0.500 4.966 0.618 5.515