A retractable light fixture apparatus has a housing having sides, a bottom, and an open end having a cover attached thereto. A lamp is attached to the housing cover which is hinged to the housing and which is actuated by a lamp solenoid which is movably attached to the bottom of the housing and pinned...http://www.google.com/patents/US5124902?utm_source=gb-gplus-sharePatent US5124902 - Retractable light fixture
