Abstract: A lighting system has at least one channel for receiving at least one light unit that can be inserted into the channel, and at least one connector that can be inserted into the channel. The channel has, in an inner region thereof, a busbar for supplying the light unit, which can be electrically coupled to the busbar, with power. The connector is designed to electrically couple busbar portions of the busbar to one another. Furthermore, the connector is designed to be mechanically coupled to portions of the channel. The channel and the connector are further designed such that, when inserted in the channel, the light unit can be arranged so as to overlap the connector, inserted into the channel in order to couple the busbar portions, within the channel.

Abstract: An interior light, in particular for shelf or display case illumination, includes an adjustment unit, which has a lens; a main body, which has a cylindrical recess inside which a lighting means is arranged; at least one guide which is provided on the recess and extends parallel to a cylinder axis of the recess; and latch means which are arranged in the region of the recess and have a plurality of latching stages, the adjustment unit having mating latch means which can latch to the latch means and guide means for guiding the adjustment unit in the guide; the guide means being arranged in each case at different positions within the guide when the mating latch means latch to the different latching stages, and a different distance being set between the lighting means and the lens in each case.

Abstract: An illuminating device has a planar, elongate lighting unit and a profile-shaped carrier component. The lighting unit can be fixed to the carrier component. The lighting unit has a profile element which is permeable to light and has a cross-sectional shape which is U-shaped in some portions, opposing limbs of the U-shaped cross-sectional shape extend substantially in the thickness direction of the lighting unit, and an inner region of the profile element is formed with an opening formed between the limbs by the U-shaped cross-sectional shape. The lighting unit has a planar base part which is arranged in the region of the opening and is coupled to the profile element. The profile element is formed by a material which offers less resistance to a deformation than a second material by which the planar base part is formed. In the inner region, a light-generation device is arranged in this case.

Abstract: The invention relates to a planar strip light for installation in a plasterboard construction, wherein the strip light comprises an optical unit which has a reflector and an LED panel, wherein the light-emitting side of the LED panel is arranged at the edge of the reflector and substantially perpendicular to the reflector in order to reduce the installation depth of the strip light, and wherein the strip light comprises fasteners for its direct fastening to the plasterboard construction.

Abstract: A lighting arrangement comprises a channel having an interior and a light exit region, and at least one light providing device. The light providing device is designed for arrangement thereof within the interior for the directional emission of light during operation through the light exit region toward the outside. Furthermore, the lighting arrangement comprises at least one busbar designed for the supply of the light providing device in the interior of the channel, wherein the light providing device is electrically coupleable to the busbar. The light providing device, for the holding thereof, is coupleable to the channel and is freely positionable at least within a region of the interior. A construction kit for such a lighting arrangement and a method for constructing such a lighting arrangement are furthermore disclosed.

Abstract: A light has a light base body and lighting segments, which can be inserted into the light base body. Each of the lighting segments here emits light in a directional manner and has a predefined emission characteristic. Moreover, the emission characteristics of the lighting segments comprise at least two different emission characteristics.

Abstract: A luminaire for installing in a grid ceiling includes at least one catch which is arranged in such a way on the luminaire and designed such that the at least one catch snaps into place automatically behind a portion of an element of the grid ceiling and thus engages behind the portion of the element of the grid ceiling in order to hold the luminaire on the grid ceiling. In addition, an assembly for a grid ceiling includes at least one ceiling profile element and at least one such luminaire.

Abstract: A lighting system has at least one luminaire having a connection portion, and has a fastening device, with a housing; an electrical contact-making connection, which can be detachably inserted into a supply connection of the luminaire, which supply connection is formed in the connection portion; at least one retaining pin, which has a securing portion, wherein the retaining pin, in a fitted state of the fastening device, extends through a slot formed in the connection portion of the luminaire, and the securing portion of the retaining pin is engaged behind a region of the connection portion that defines the slot; and a fastening portion for fastening a retaining cord and/or for connecting the terminals of an electrical supply cable.

Abstract: A lamp is disclosed, which has a lamp housing, having an end wall and a side wall, a lighting means device arranged in a housing interior having a lighting means carrier and at least one lighting means arranged thereon, an insulation component formed from an electrically insulating material having a main portion and an edging portion, wherein the main portion is arranged between the end wall and the lighting means device and wherein the edging portion extends from the main portion in such a way that the edging portion is arranged between the lighting means device and the side wall of the lamp housing.

Abstract: A training device for monitoring a physical exercise is formed having a volume element, a sensor apparatus which is designed to detect a mechanical force and/or a pressure which a user exerts on the volume element while performing the physical exercise, and to generate a measurement signal on the basis of the detected force and/or the detected pressure, and an evaluation apparatus which is designed to compare the measurement signal generated by the sensor apparatus with a value range and/or a target value and to automatically generate an output signal on the basis of the result of the comparison.

Abstract: A luminaire for installing in a grid ceiling includes at least one catch which is arranged in such a way on the luminaire and designed such that the at least one catch snaps into place automatically behind a portion of an element of the grid ceiling and thus engages behind the portion of the element of the grid ceiling in order to hold the luminaire on the grid ceiling. In addition, an assembly for a grid ceiling includes at least one ceiling profile element and at least one such luminaire.

Abstract: A lighting arrangement has a housing having an interior and a light outlet region, and at least one light-providing device. The light-providing device is configured such that it can be arranged within the interior to emit light during operation through the light outlet region to the outside. The light-providing device can be coupled to the housing and can be freely positioned at least within one region of the interior. A second lighting arrangement has a housing having an interior and a light outlet region, the housing having an opening, which is set up to guide at least one line through the opening out of the interior. The second lighting arrangement has at least one brush, which is provided with hairs or fibres or bristles, which are arranged in the opening and/or cover the opening at least in portions.

Abstract: A control circuit for a voltage converter has a switch which has a multiplicity of parallel-connected current-conducting branches with resistors with different resistance values, and a contact maker. The contact maker is configured to connect selectively in each case one of the multiplicity of parallel-connected current-conducting branches to an input contact of the switch. The control circuit also includes a detector circuit which is configured to determine a voltage drop across the resistors and to output, as a function of the determined voltage drop, an actuation signal for setting a setpoint output current of the voltage converter to the voltage converter.

Abstract: An interior light, in particular for shelf or display case illumination, includes an adjustment unit, which has a lens; a main body, which has a cylindrical recess inside which a lighting means is arranged; at least one guide which is provided on the recess and extends parallel to a cylinder axis of the recess; and latch means which are arranged in the region of the recess and have a plurality of latching stages, the adjustment unit having mating latch means which can latch to the latch means and guide means for guiding the adjustment unit in the guide; the guide means being arranged in each case at different positions within the guide when the mating latch means latch to the different latching stages, and a different distance being set between the lighting means and the lens in each case.

Abstract: A training device for monitoring a physical exercise is formed having a volume element, a sensor apparatus which is designed to detect a mechanical force and/or a pressure which a user exerts on the volume element while performing the physical exercise, and to generate a measurement signal on the basis of the detected force and/or the detected pressure, and an evaluation apparatus which is designed to compare the measurement signal generated by the sensor apparatus with a value range and/or a target value and to automatically generate an output signal on the basis of the result of the comparison.

Abstract: A luminaire for installing in a grid ceiling includes at least one catch which is arranged in such a way on the luminaire and designed such that the at least one catch snaps into place automatically behind a portion of an element of the grid ceiling and thus engages behind the portion of the element of the grid ceiling in order to hold the luminaire on the grid ceiling. In addition, an assembly for a grid ceiling includes at least one ceiling profile element and at least one such luminaire.

Abstract: The invention relates to a planar strip light for installation in a plasterboard construction, wherein the strip light comprises an optical unit which has a reflector and an LED panel, wherein the light-emitting side of the LED panel is arranged at the edge of the reflector and substantially perpendicular to the reflector in order to reduce the installation depth of the strip light, and wherein the strip light comprises fasteners for its direct fastening to the plasterboard construction.

Abstract: A luminaire includes at least one main illuminant and at least one auxiliary illuminant. The main illuminant is provided for a continuous operation. The auxiliary illuminant is controlled by a motion sensor, which activates it when movement is detected. Preferably, the motion sensor is embedded in the luminaire. Furthermore, it is preferred that the at least one auxiliary illuminant is designed as a LED-luminaire.