NOVELTY - A sealing film comprises ethylene polymer having water-vapor-permeation rate of 0.1-1gx mm/(m2x 24 hours), and an optical stabilizer (I), and has melt flow rate of 0.1-100 g/10 minutes at 190 degrees C under load of 2.16 kg based on JIS K-7210.    USE - Sealing film used for manufacturing module (all claimed) for solar cell, wet solar cell and organic-semiconductor solar cell.    ADVANTAGE - The sealing film has excellent flexibility, volume resistivity, light stability and impact resistance. The solar cell module formed using sealing film has excellent electric power generation efficiency, and reduced generation of ion migration.    DETAILED DESCRIPTION - A sealing film comprises ethylene polymer having water-vapor-permeation rate of 0.1-1gx mm/(m2x 24 hours), and an optical stabilizer of formula (I), and has melt flow rate of 0.1-100 g/10 minutes at 190 degrees C under load of 2.16 kg based on JIS K-7210.    X=alkyl, alkenyl, alkyloxy, alkenyloxy, alkyloxycarbonyl, alkenyloxy carbonyl, aryloxy carbonyl, acyl, acyloxy, alkyloxy carbonyloxy, alkenyloxy carbonyloxy, aryloxy carbonyloxy, alkylsulfonyl, alkenyl sulfonyl, arylsulfonyl, alkyl sulfinyl, alkenyl sulfinyl, aryl sulfinyl, sulfamoyl or carbamoyl;and    R=monovalent substituent.    INDEPENDENT CLAIMS are included for the following:    (1) solar cell module, which has a sealing component containing hardened material of sealing film, surface-side transparent protection component, back surface side protection component and photovoltaic cells clamped by the surface-side transparent protection component and back surface side protection component. The sealing component seals the photovoltaic cell, and is provided between surface-side transparent protection component and back surface side protection component; and    (2) manufacture of solar cell module, which involves laminating surface-side transparent protection component, sealing film (a), photovoltaic cell, sealing film (b) and back surface side protection component, forming laminate, heating and pressurizing.