manufacture date is 2-9-98 but item has never been used
Sterner Lighting Systems 400w Mercury Vapor Bethel Luminaire
120/207/240/277volt multi-tap ballast - factory wired at 277volt
400w H33 Mercury Vapor lamp NOT included
Luminaire has a 2 7/16" diameter opening with set screws for mounting on a 2 3/8" diameter pipe or tube
