Abstract: A waterproof swivel electrical cable connector comprises a first housing including a first electrical connector being rotatably connected to a second housing including a second electrical connector. A first elastomeric washer is intermediate the first housing and the second housing and providing a watertight seal between the first housing and the second housing as the first housing and first electrical connector are rotated relative to the second housing and second electrical connector.

Abstract: The invention relates to an assembly of a capped high-pressure discharge lamp (1) and a lamp holder (50). The discharge lamp comprises an outer envelope (10) in which a discharge vessel (11) is arranged. The outer envelope has a pinched portion (20) provided with a clamping member (25). A lamp cap comprises a substantially circular-cylindrical cup shaped portion for receiving the clamping member and is provided with a protruding collar (36). The lamp holder (50) comprises a substantially circular-cylindrical flange (55) for receiving the cup-shaped portion such that the flange engages the protruding collar. An inner diameter of the flange (55) has a tolerance of less than or equal to ?0.2 mm. An outer diameter of the cup-shaped portion (33) has a tolerance of less than or equal to +0.2 mm. The respective tolerances extend over a length of at least 2.5 mm, measured with respect to the protruding collar.

Abstract: A fluorescent light fixture 203 replaces a PAR lamp in an existing installation without the need to rewire the installation. The replacement fixture includes a screw-in plug corresponding to the standard base of a PAR lamp and wiring between the plug and the new fixture. A tubular member receives and attaches to a PAR fixture at one end thereof; and attaches to a replacement fixture at the other end. The tubular member has stepped inside diameters to accept a variety of fixtures; and a set screw and locking nut lock the adapter to the PAR fixture.

Abstract: A light bulb mounting arrangement has at least one continuous grooved indentation about the base portion and an adapter to fit the device to present day threaded sockets. The bulb is retained in a substantially tubular socket which is in a close fitting or telescopic relation with the base. The retaining mechanism has at least two spring-loaded fingers having nodes thereon with cross-sectional profiles similar to and matable with those of the grooved indentions. Optionally, the adapter upon installation is captive within the existing conventional socket.

Abstract: A push-in light socket adapter for use with a conventional household light bulb socket for facilitating a rapid removal and replacement of a light bulb. The adapter includes a threaded socket body which may be engaged to the household light bulb socket in place of the light bulb. The light bulb may then be inserted directly into the adapter without rotating the bulb. The adapter allows a removal of a burnt-out light bulb by a simple pulling motion which releases the bulb from the socket body. A new bulb may then be easily inserted into the adapter by pushing it into the socket body. The light socket adapter further includes an indicator light operable to indicate both a supply of electrical power to the device and a presence of the light bulb within the socket body.

Abstract: A plug-in type AC electrical bulb apparatus comprising a bulb having being connected with elastic conductive wire extended from the tungsten and a bulb head portion having the function of voltage reduction, wherein the bulb head portion comprises a bulb seat and a copper head and a bulb recess mounted with two elastic plate corresponding to the elastic wire is provided on the seat for the adaptation of the bulb. A diode is connected in series along the conductive wire for the prevention of short circuit such that the high voltage from an alternating current source is reduced to direct current 55 V.

Abstract: A mechanism for locking a fluorescent lamp adaptor to a standard incandescent screw-in lamp socket utilizing base member having a bottom and wall portions. The wall portion of the base member possesses an inner surface and an outer surface and an aperture extends through the wall portion. A male screw-in element is also utilized and is confined to the base member for freely rotating relative to the base member and the screw-in lamp socket. A tool urges the threaded male screw-in element into threading engagement with the standard screw-in lamp socket to permit insertion and removal of the lamp adaptor in relation to the standard screw-in lamp socket.