Protected by one or more US Patents Nos. 7,271,543 & 7,081,715Consult factory for additional options not shown or listed.Program Rapid Start Ballasts are used to control lamp(s) that are cycled or dimmed.BEFORE INSTALLATION, PLEASE CONSULT YOUR LOCAL ORDINANCES AND BUILDING CODES FOR COMPLIANCEDownloads: SPEC SHEET (PDF)