bulkhead luminaire

bulkhead luminaire

A lighting fixture, usually ceiling-mounted, which has a heavy glass bowl, often enclosed by a wire mesh to protect the light bulb within from damage; used for temporary illumination around a job site.
References in periodicals archive ?
Part of HOLOPHANE'S new Metro Capabilities range, Metrolux and Widerlite are bulkhead luminaires engineered specifically for use in underground rail tunnel systems and have been updated with the latest in lighting technology.