Fusion T5 4 Lamp 347V Electronic Fluorescent Ballasts are designed to perform to the highest standards and conform to and meet all applicable ANSI, FCC, UL & CSA requirements and provide energy efficient fluorescent system solutions for numerous applications and for use in various fixture designs including recessed and surface mounted as well as specialty fixtures. All Fusion electronic ballasts have a 5 year limited warranty providing peace of mind for the user.