A solar cell module comprising a solar cell panel, a frame configured to be fixed to an outer rim portion of the solar cell panel and an inverter device, the inverter device disposed at a rear side of the solar cell panel, and comprising: an outer case having a bottom wall, a surface of which facing a rear surface of the solar cell panel with a gap provided between the bottom wall and the rear panel surface, and lateral walls, the outer case formed of an anodized metal and including a first through-hole in its bottom wall and a second through-hole in one of its lateral walls; an inner case located inside the outer case, the inner case being detachably mounted to the outer case; circuitry (31, 33, 35, 37) accommodated in the inner case and configured to generate an alternating current from a direct current supplied by the solar cell panel, the circuitry (31, 33, 35, 37) including at least one terminal connected to one or more electrical wire members carrying the direct current, the one or more electric wire members extending from the solar cell panel through the first through-hole, wherein the inner case is formed of an electrically insulating material to maintain an electrical insulation distance between the outer case and the circuitry (31, 33, 35, 37); and a bonding member between the bottom wall of the outer case and the solar cell panel, the bonding member adhering the outer case to the solar cell panel and extending circumferentially with respect to the first through-hole, wherein an output cable carrying alternating current extends from the outer case through the second through-hole, and wherein the outer case includes: a first case member defining: the bottom wall and the lateral walls, with the lateral walls extending from the bottom wall, an inner space by the bottom wall and the lateral walls, and a bonding flange providing a region to which a bonding member is to be applied and being bent from the lateral walls so as to extend outward, and a second case member defining a cover wall positioned atop the lateral walls, wherein the first case member and the second case member are adapted to be bonded to each other to form an integral case, and wherein the bonding flange is adapted to assist the first case member and the second case member in being bonded to each other by the bonding member. an outer case having a bottom wall, a surface of which facing a rear surface of the solar cell panel with a gap provided between the bottom wall and the rear panel surface, and lateral walls, the outer case formed of an anodized metal and including a first through-hole in its bottom wall and a second through-hole in one of its lateral walls; an inner case located inside the outer case, the inner case being detachably mounted to the outer case; circuitry (31, 33, 35, 37) accommodated in the inner case and configured to generate an alternating current from a direct current supplied by the solar cell panel, the circuitry (31, 33, 35, 37) including at least one terminal connected to one or more electrical wire members carrying the direct current, the one or more electric wire members extending from the solar cell panel through the first through-hole, wherein the inner case is formed of an electrically insulating material to maintain an electrical insulation distance between the outer case and the circuitry (31, 33, 35, 37); and a bonding member between the bottom wall of the outer case and the solar cell panel, the bonding member adhering the outer case to the solar cell panel and extending circumferentially with respect to the first through-hole, wherein an output cable carrying alternating current extends from the outer case through the second through-hole, and wherein the outer case includes: a first case member defining: the bottom wall and the lateral walls, with the lateral walls extending from the bottom wall, an inner space by the bottom wall and the lateral walls, and a bonding flange providing a region to which a bonding member is to be applied and being bent from the lateral walls so as to extend outward, and a second case member defining a cover wall positioned atop the lateral walls, a first case member defining: the bottom wall and the lateral walls, with the lateral walls extending from the bottom wall, an inner space by the bottom wall and the lateral walls, and a bonding flange providing a region to which a bonding member is to be applied and being bent from the lateral walls so as to extend outward, and the bottom wall and the lateral walls, with the lateral walls extending from the bottom wall, an inner space by the bottom wall and the lateral walls, and a bonding flange providing a region to which a bonding member is to be applied and being bent from the lateral walls so as to extend outward, and a second case member defining a cover wall positioned atop the lateral walls, wherein the first case member and the second case member are adapted to be bonded to each other to form an integral case, and wherein the bonding flange is adapted to assist the first case member and the second case member in being bonded to each other by the bonding member.