ESI K-18EA12S432-VER-PW-QHEN 1X8 4-LAMP T8 VERSA KIT, ENHANCED ALUMINUM REFLECTOR, 12S DESIGN, VERSA-BRACKETS (4.25-5.00), PREWIRED, INCLUDES TEK SCREWS & BJB CAM-LOCK LAMPHOLDERS, 4-LAMP SYLVANIA QUICKTRONIC ISN 120-277V BALLAST.