An object of the present invention as well as simplify the heat dissipation structure, possible and the strawberry cultivation separate exchange of LED lights to provide a light source device to be used for and other food cultivation. on the inside of An upper surface 11 of the heat radiating member formed of aluminum long body of-shaped cross-section of the lower opening call and emission as well as projecting the LED light-emitting element (light section 212) to the substrate 211 chip LED lights 21 having a engagement flange portion 213 in the element peripheral portion, there is provided a light source apparatus formed by arranging held at appropriate intervals, by providing a mounting hole corresponding to the holding portion of the light in the shape of the substrate heat dissipation body and the upper surface mounting plate 22 which is secured inside, holds the light in the state of fitting the board to the mounting holes in the locking flange portion, a lid 23 provided with through holes to the light emitting element position, the lid lid fixed part to prevent dropout and (side plate 24 and the spring line body 25), in it is configured.BACKGROUND 2【課題】放熱構造を簡素化すると共に、LEDライトの個別交換を可能としたいちご栽培やその他の食物栽培に使用する光源装置を提供する。【解決手段】下方開口コの字状断面のアルミ長尺体で形成された放熱体の上面11の内側に、基板211にLED発光素子(ライト部212)を突設すると共に発光素子周囲部分に係止鍔部213を設けたチップLEDライト21を、適宜間隔で配置保持してなる光源装置であって、ライトの保持部を基板の形状に対応する装着透孔を設けて放熱体上面内側に固着した装着板体22と、基板を装着透孔に嵌合した状態のライトを係止鍔部で保持すると共に、発光素子位置に透孔を設けた蓋体23と、蓋体の脱落を防止する蓋体固定部(側板24及びバネ線体25)と、で構成してなる。【選択図】図2
