High-power lighting used for night game of various stadiums such as baseball fields, soccer fields, golf courses, tennis courts, etc. or for the security of the port must meet duration up to 24 hours or more depending on the intended use. The biggest strengths of VISOL products are to have the perfect heat dissipation structure and to be smaller and lighter. In order to increase heat dissipation efficiency, many parts are required, but we have overcome the limitations of high-power LED lighting requiring inevitably big and heavy one.