It Has Set Screw for Locking Fixture Stem; Protects Fixture Against Wind and Vibration Damage; Dual Function - Conduit Outlet Box and Fixture Hanger; Can Be Wired at Work Bench; for Added Protection Where Lighting Fixtures Are Subjected to Vibration
"For (2) 0.405 to 0.612 in Cable, 1.738 in Width X

• Special Features: "For (2) 0.405 to 0.612 in Cable, 1.738 in Width X It Has Set Screw for Locking Fixture Stem; Protects Fixture Against Wind and Vibration Damage; Dual Function - Conduit Outlet Box and Fixture Hanger; Can Be Wired at Work Bench; for Added Protection Where Lighting Fixtures Are Subjected to Vibration
• Standard: Ul File Number E109438