A shock absorptive magnetic mounting support for a light fixture or the like object includes a base having a magnet mounted thereon for magnetically securing the mounting support to the underside of a metallic shelf or support surface. A support shaft upon which the light fixture is mounted has a threaded end portion received in an aperture in the base. A stop adjacent the threaded end portion limits the insertion thereof into the aperture. A rubber washer of a predetermined thickness is received on the threaded end portion of the shaft in abutting relation with the base. A nut, and, if desired, a lock washer, is received on the threaded end portion of the support shaft. The nut is tightened down against the rubber washer to secure the base and support shaft in a joined condition. The shock absorptive arrangement aids in preventing detachment of the magnetic base from the metallic shelf support in the event of the application of force to the upper side of the shelf.

A lighting system for supplying AC power normally, and DC power on an emergency basis selectively, to electron discharge devices, particularly fluorescent lamps; thus, the AC or DC power is furnished over common lines to a high frequency inverter associated with each lamp or lamp fixture; the arrangement is such that substantially no extra wire or wiring is required for the emergency lighting, whether the installation be a new one or retrofitted. In the latter case, new style electronic ballasts replace the old or core type ballasts in those fixtures that are to provide the emergency lighting; such electronic ballasts including the aforesaid inverter capabilities.

An emergency lighting fixture has a capped circular and longitudinally slotted tube containing a power supply and charging electronics. Cylindrical outer envelopes rotatably enclosing the tube each have pivotally mounted lamp shells at opposing ends. A spider plate attachable canopy having integrally molded apertured inner lugs has an outer integrally molded arm supported overhanging portion, the arm being of substantial cross section for supporting the tube weight centrally supporting the lighting fixture. The tube has a longitudinal support slot receiving a rectangular support piece terminating from the canopy arm. End caps enclosing tube ends each have a circumferential groove for receiving guide nubs are disposed in spaced apart relationship on the inner circumference of the envelopes. The envelopes have oblique truncated surfaces allowing beam positioning without envelope interference. Installation is achieved by affixing the spider to an outlet box, joining the wires of the outlet box to those from the canopy, and affixing the canopy to the spider plate. The support portion of the canopy is slid into the tube slot and tube, the envelopes are fitted over the tube and polarized electrical connectors are joined. Beam adjustment is effected by envelope rotation and shell pivoting, without significantly changing the overall cylindrical appearance of the fixture.

An elevator cab in which emergency lighting is concealed until it is required to be utilized. When the normal electrical power supply to the cab fails, the emergency lighting is automatically pivoted from a concealed position behind an inconspicuous wall plate to an exposed position which projects the lens of the emergency lighting fixture into the cab through the opening previously closed by the inconspicuous wall plate. In the exposed position, the emergency lighting is energized by an emergency power supply, with the emergency power supply also automatically becoming available when the normal power supply fails. In a preferred embodiment, the emergency lighting is located in the return, directly above the car station, and below the transom.

A flashlight and holder cooperate to automatically turn the flashlight on when the flashlight is removed from the holder and turn the flashlight off when the flashlight is returned to the holder. The flashlight includes a bottom cap with a magnetically actuated switch. The holder includes a magnet which cooperates with the switch to turn off the flashlight. The magnet also provides some degree of attraction for retaining the flashlight in the holder. The holder may be a stationary holder for holding a flashlight in a home or workplace, or may be a holster.