An illuminating lamp assembly (20,20') for supporting fluorescent tubes in an exit sign (10) including a body (22) for supporting a pair fluorescent tubes (24) and an electrical connector (26) rotatable about a first axis for threadedly engaging an electrical socket (18). A support member (28,60) interconnects...http://www.google.com/patents/US4650265?utm_source=gb-gplus-sharePatent US4650265 - Illuminating lamp assembly for retrofitting an exit sign
