Specifications: Amorphous (a-Si) Thin Film Solar Modules : 40Wp, 38Wp, 20Wp, 10Wp JetForward - Key amorphous silicon (a-Si) photovoltaic modules Model M40 / M38 Stabilized Power Rated Power (Pmp) 40W/ 38W Voltage (Vmp ) 44.6V / 45V Current (Imp) 0.9A / 1.0A Open Cir. Voltage (Voc) 60.2V/ 60V Short Cir.Current (Isc) 1.1A/ 1.05A Dimensions (W x L x H) 635x1245x7mm Weight (Kg) 13.5/ 13.2 Operation condition : -40C~+85C Expected lifetime: Warranty of 20 years min., power rate is not less than 80% of the nominal power min. *Standard Test Conditions (1000 W/m2 irradiance, AM1.5 solar spectral distribution, 25 o C cell temperature)