An automatic night light which will change its illumination in response to changes in the ambient light level. The circuit comprises an AC input with the lamp and a solid-state switch connected in series, a resistive voltage divider being connected across the solid-state switch and having series-connected fixed and light-sensitive resistors. The switch gate is connected to the voltage divider tap by a bidirectional conductor. The structure comprises a housing having circuit and lamp portions. The circuit portion has outlet prongs with bent-back ends, a circuit board being supported by notches in the housing and the prong ends. The housing also supports spring contacts which connect the circuit board to the lamp socket in a simple manner, with the light-sensitive device being easily mountable and firmly supported by the housing.
A self-contained night light is disposed in a housing containing spaced-apart male AC prongs the mate with an AC socket. The housing contains an array of differently colored, preferably light emitting diode. Light sources that can dynamically output different patterns of differently colored light in response to drive signals. A microcontroller executes a sequence of instructions causing the controller to output different sequences of signals that are coupled to a driver unit that drives the light sources. The result is that the array dynamically produces different patterns of differently colored light. A user operable control allows a viewer to "freeze" any desired pattern of light, such that until reset, the night light will continue to output a static pattern of colors. The night light may include a manual or light-sensing ON/OFF switch.
An assembly for supporting a light or other signal fixture in an elevated location, either self-supported, as basally, for lighting purposes, or as on TV and radio towers, smoke stacks and other installations requiring elevated operative warning signals, as safety beacon lights or other similar fixtures, at the top portion thereof, and for lowering such fixtures to an accessible inoperative lower location for replacing, repairing or otherwise servicing the fixture without requiring service personnel to climb, to or from the elevated operative location; and including an auxiliary vertical support assembly in association with the tower or like structure and having a carriage associated therewith and carrying a light or other signal fixture, and which carriage may be moved along the support assembly to a lowered, retracted, inoperative position at rest or for replacement or repair of the fixture, and to an upper elevated operative position relative to the tower or like structure, making electrical or other operative connections for the fixture in such operative elevated location relative to the tower.
An electrical receptacle for use in a string of holiday lighting that has a removable, replaceable, on-board power control board. The control board taps into normal alternating current delivered to the receptacle from a pair of wires running from an electrical plug and uses it to deliver electrical power through a fuse to a third wire that supplies current to a set of lights carried by the third wire as it runs from the receptacle back to the plug. The control board may also rectify the current to the third wire so that the lights operate on direct current rather than alternating current. However the receptacle delivers alternating current to subsequent load plugged into it. The control board is also capable, with suitable choices of components carried by it, of other modifications of the electrical current it delivers to the third wire.
An end socket applicable to Christmas decoration low-voltage bulbs comprises a shell body, a first and a second conductive sheet, a diode, and an electric cable. The shell body has an receiving room with the first and second conductive sheets therein. The first and second conductive sheets are connected to a first conducting pin and a second conducting pin of a plug, respectively. One end of the diode is connected to the first conductive sheet. The electric cable is composed of a power line, a ground line, and a low-voltage power line. The power line is connected to the first conductive sheet. The ground line is connected to the second conductive sheet. The low-voltage power line is connected to the other end of the diode. Because the low-voltage power line provides a lower voltage to light up Christmas decoration low-voltage bulbs, the effect of energy saving can be accomplished.
An improved night light incorporating effective safety features that greatly reduce the risk of electrocution by small children. The housing of the night light flares out towards its back surface to prevent an adult's or child's fingers from accidently contacting electrically live blades while inserting or removing it from an electrical receptacle. The blades are constructed so that their length is a function of the distance the blades are below the surface of a receptacle, the distance from the side of the blade where it protrudes from the back surface of the housing to the side edge of the housing and the distance from the bottom edge of the blade to the bottom edge of the back surface of the housing. A toggle provides on and off control of the night light. An open loop of spring metal provides the toggle with a snap action feel when operated. A snap on shade prevents glare to a user from direct exposure to the illuminating bulb.