The present invention relates to an adapter (1) for connecting a light to a track having mains phases and comprising a housing (2), at least one spring-loaded connector (6.1) linked to the housing (2), and a cover (4) partially covering the housing (2) and having at least one opening (8.1). The cover (4) is displaceable so as to be placed selectively in one of: a position in which the at least one spring-loaded connector (6.1) extends at least partially through the at least one opening (8.1), a position in which the cover (4) covers the at least one spring-loaded connector (6.1).

A lighting system comprising a track having a first and a second rail (5, 7), mutually extending equidistantly. Said first and second rail comprise a first respectively a second electrically conductive strip, mutually electrically isolated. A lighting module (17) comprising a first and second electrical contact, which lighting module in mounted position rests by gravitational force on the first and second rail. When mounted the first and second electrical contact are in electrical contact with a respective one of the first and second electrically conductive strip. The lighting module is dismountable from the track by a single displacement of the lighting module in a direction against the direction of the gravitational force.

A lighting system comprising a track having a first and a second rail (5, 7), mutually extending equidistantly. Said first and second rail comprise a first respectively a second electrically conductive strip, mutually electrically isolated. A lighting module (17) comprising a first and second electrical contact, which lighting module in mounted position rests by gravitational force on the first and second rail. When mounted the first and second electrical contact are in electrical contact with a respective one of the first and second electrically conductive strip. The lighting module is dismountable from the track by a single displacement of the lighting module in a direction against the direction of the gravitational force.

A luminaire includes a rail, first and second pairs of wings formed at opposed edges of the rail, a pair of contacts on each one of the top and bottom surfaces of the rail, at least one LED module attachable to the rail via at least one magnetic element, such that the LED module is electrically coupled to one pair of the pairs of contacts. The rail configured to receive and power the at least one LED module on either one of the top and bottom surfaces.

A luminaire includes a rail, first and second pairs of wings formed at opposed edges of the rail, a pair of contacts on each one of the top and bottom surfaces of the rail, at least one LED module attachable to the rail via at least one magnetic element, such that the LED module is electrically coupled to one pair of the pairs of contacts. The rail configured to receive and power the at least one LED module on either one of the top and bottom surfaces.

Disclosed is a grid lighting system having at least one housing segment with at least one lighting zone. At least one lighting module is selected from at least one track lighting module and/or at least one non-track lighting module. The at least one lighting zone extends along a first length dimension of the housing segment and including at least one first passage to receive the at least one track lighting module and/or non-track lighting module. The housing segment includes a first power supply segment to be coupled with a designated line voltage outlet to deliver line voltage power to the at least one lighting module in the at least one lighting zone. Each track lighting module includes a lighting subzone, with a second passage to receive one or more lighting submodules along a second length dimension. A second power supply segment is provided to couple with the first power supply segment to receive line power and to deliver low voltage to the one or more lighting submodules.

A lighting device and a lighting system are disclosed. In an embodiment, a lighting device includes at least one optoelectronic semiconductor chip, two contacts configured to couple the lighting device to a DC voltage and a driver circuit interconnected in series with the at least one semiconductor chip in a string, wherein the driver circuit comprises a monolithic, unhoused controller, wherein the driver circuit is configured to adjust a current for operating the at least one semiconductor chip, and wherein the string extends between the two contacts in an electrically coupling way.

An adjustable lamp includes a base, a riser configured to be attached to the base, and an adjustment arm including a lamp head. The adjustment arm is configured to be removably engaged to the riser. The adjustment arm is slidably moveable relative to the riser along a longitudinal length of the adjustment arm such that the distance between the lamp head and the riser can be increased or decreased. The adjustment arm includes a plurality of electrical buses configured for electrical-mechanical engagement with the riser when the adjustment arm is attached to the riser, and the LED lamp head is configured for electrical communication with the plurality of electrical buses.

A track adapter has a mounting seat, an electrical supply column, an adjustment conductive portion, and an adjustment knob, and a drive mechanism. As to the track adapter and the driving power supply with the track adapter and the track light, the lamp holder of the track lamp can wrap the whole track, which is neat and beautiful, and solve the problem of difficult phase adjustment of adaptor in the prior art at the same time. The phase adjustment knob is shrunk and put on the top of the adaptor, which solves the adjustment problem and adapts to more occasions, so that the structural design of the track lamp is more flexible.

A track adapter has a mounting seat, an electrical supply column, an adjustment conductive portion, and an adjustment knob, and a drive mechanism. As to the track adapter and the driving power supply with the track adapter and the track light, the lamp holder of the track lamp can wrap the whole track, which is neat and beautiful, and solve the problem of difficult phase adjustment of adaptor in the prior art at the same time. The phase adjustment knob is shrunk and put on the top of the adaptor, which solves the adjustment problem and adapts to more occasions, so that the structural design of the track lamp is more flexible.