A dimming track lamp has a detachable assembly housing with a power supply track, a control circuit board electrically connected with the power supply track, a lamp body arranged on the assembly housing, a printed circuit board arranged in the lamp body, a light source on the printed circuit board and an optical element arranged in the light output direction of the light source. The control circuit board has a power supply module which is electrically connected with the power supply track, a signal input module, a signal processing module for analyzing and calculating the input signal and generating a control signal, and a signal output module for outputting the control signal to the printed circuit board. The light source has a warm light source and a cold light source, the control signal is used to control the light output of the warm light source and the cold light source.

An LED track lighting system has an elongated track with a central member extending the length of the track and positive and negative contact strips affixed to opposite sides of the central member. One or more LED modules are provided which support at least one LED lamp. The modules are formed as modified, inverted U-shapes having side walls extending down from a top wall. Positive and negative electrical contacts are affixed to the side walls. An electrical power source is connected to the contact strips for supplying electricity to the strips. Each LED module overlaps the central member and the module contacts such that the contacts come into contact with the contact strips. Electricity from the power source is transmitted to the contact strips, to the contacts, and then to the LED lamps to illuminate the lamps on the modules.

A lighting arrangement includes a first lighting module and a second lighting module. A rail is designed for coupling or at least partially accommodating the first lighting module and the second lighting module. A conductor device is provided along the rail in order to provide electric current and a control signal. The first lighting module is configured to be coupled to the conductor device to receive electric current for supplying the first lighting module and the control signal from the conductor device. The first lighting module is configured to process the control signal and to control the first lighting module in dependence upon the control signal. The first and the second lighting module are configured to be coupled to one another such that a signal for controlling the second lighting module can be communicated from the first lighting module to the second lighting module.

An elongated modular heat sink array having through power and/or data flowing from end to end powering and/or communicating with externally mounted coupled electronic devices.

A multiple function LED night light has at least one LED device and added function(s) such as an air-freshener adaptor device, sonic device, frequency device, sensor device, bug repeller device, second light device, timepiece, electric message device, timer device, temperature device, surge protection device, electric short circuit protection device, base device for installation on an existing lamp socket, emergency light device, or any other electric device(s) suitable for home use to keep people comfortable or safe. The LED device has a first optic means to change the narrow-viewing angle of an LED's spot-light beams into a wider-viewing angle and second optic means to help make the LED night light exhibit a smooth lighting effect. The device may be arranged to fit into an existing night light bulb socket to turn any existing bulb night light into a power saving LED night light.

An LED track lighting system has an elongated track with a central member extending the length of the track and positive and negative contact strips affixed to opposite sides of the central member. One or more LED modules are provided which support at least one LED lamp. The modules are formed as modified, inverted U-shapes having side walls extending down from a top wall. Positive and negative electrical contacts are affixed to the side walls. An electrical power source is connected to the contact strips for supplying electricity to the strips. Each LED module overlaps the central member and the module contacts such that the contacts come into contact with the contact strips. Electricity from the power source is transmitted to the contact strips, to the contacts, and then to the LED lamps to illuminate the lamps on the modules.

An adapter for use in a track lighting system is designed to be inserted into a track. The track has an electrical conductor means with conductors, the adapter has contact elements, and when the adapter is in an inserted state, contact can be made with the conductors by means of the contact elements. The contact elements can be moved into a contacting position, in which they protrude from the adapter so that they can be connected to the conductors, and into a non-contacting position, in which the adapter can be retracted into or removed from the track. The movement of the contact elements between the contacting position and the non-contacting position can be brought about by an operator by means of a moveably arranged actuating element of the adapter.

A track light with phase-switching device includes a track assembly, a light source base, and a power module. The track assembly includes an installation base, a first side wall, and a second side wall. The first side wall and the second side wall are respectively disposed at opposite sides of the installation base. One end of the first side wall has a first fixation portion, and one end of the second side wall has a second fixation portion. The light source base is assembled with the track assembly. The light source base includes a heat dissipation base and a light source plate. The light source plate is located on the heat dissipation base. The power module includes wirings and a phase-switching device. The power module is electrically connected to the light source plate through the wirings. The phase-switching device is provided for switching a phase of the wirings.

A light fitting control module able to receive a coupler of a light fitting that is also able connect to an electrically power track. The light fitting is able to be supported and/or powered by the track. The control module comprises a first coupler able to connect with the supporting power track and a second coupler able to connect to the coupler of said light fitting to support and electrically connect said light fitting with the electrically powered track. The control module is configured and adapted to respond to remote command to control at least one degree of freedom of operation the lighting fitting.

The LED and/or laser projection light device has three major project parts including (a) light source (b) image-forming-unit (c) project/refractive lens to make desired enlarge projected image, patterns or light beams. The project light has at least one of inner optics-lens or optics-elements rotating to create the splendid lighted image or patterns or light-beam to emit to outer-cover. Further, The project light preferred have at least one of additional-functions built-in project light device select from (i) 2.sup.nd light source for preferred illumination function(s), (ii) glow, back light, (iii) 2.sup.nd or more project assemblies in one light device, (iv) other light functions, (v) candle light illumination, (vi) bulb illumination, (vii) desk top or floor light illumination, (viii) having battery or rechargeable battery or built-in/outside AC-to-DC circuit to get power source, (ix) apply the USB port or adaptor or connector or AC-plug wire to get power source, (x) steady, rotating, replaceable, detachable, movable 3 major project parts.