specification tolerance cells mono crystal parameter values unit 41.67mmx125mm square operating temperature 45 ℃ number of cells 36 (4x9) series connected hail diameter @ 80km/h up to 25 mm typical application 12v dc continuous wind pressure up to 24 m/s maximum voltage 600v dc connection terminals size mm 850 (l) x 550(w) x35(h) weight 7.8kg connector type connector type with box02 front glass 3.2 mm thick electrical typical values (2) model rating power (pm) efficiency of cell efficiency of module tolerance rated current rated voltage (vm) short circuit current (isc) open circuit voltage (voc) (im) jjsm50d 50w ≥14.02% 10.70% ±5% 2.86a 17.5v 3.56a 21.6v jjsm55d 55w ≥15.43% 11.76% ±5% 3.14a 17.5v 3.68a 22.3v jjsm60d 60w ≥16.83% 12.83% ±5% 3.37a 17.8 v 4.05a 22.7v noct:48℃+2oc temperature coefficient voltage: 0.16v/℃ / -(160+10)mv/oc temperature coefficient of power: -(0.5+0.05)%/oc temperature coefficient current: 0.06%/℃ / (0.065+0.