Stem and Swivel Style Photocell | Control Circuits Lighting Ballasts Meter Circuits Electronic Circuits | Designed to Compensate for Length Changes Due to Temperature Variations in Exposed Conduit Runs | Dusk to Dawn Lighting Control | For Use With Sheet Metal | For Use With Threaded Metal Conduit and Imc | Installed in a Conduit Run, Compemsates for Temperature Changes | Terminating ConnectorFurbay Electric Supp