Abstract: A lighting system has a set of linear lighting elements and a set of suspension elements. Each suspension element comprises an upper fixing part and a lower connection part facing downwardly for making electrical and mechanical connection to an upward facing connector on a top face of an end of a linear lighting element. This enables a simple a push fit connection of the lighting elements to the suspension elements, after they have been suspended from a support structure above them.

Abstract: A system (1, 11, 21) is configured to store an indicator of a first person (51) for which a digital message is intended and an experience effect in a memory of the system. The experience effect is part of or derived from the digital message and the digital message comprises text composed by a second person (52). The system is further configured to determine whether the first person is within a certain range of an electronic device (19, 21) which can be used to produce the experience effect, e.g. a luminaire, and to cause the electronic device to produce the experience effect and cause the text to be reproduced on a text rendering device at the same time upon the first person being determined to be within the certain range of the electronic device.

Abstract: An electronic device (1) is configured to receive one or more wireless signals from one or more beacon systems (21-23). The one or more wireless signals identify the one or more beacon systems. The electronic device is further configured to identify local beacon systems (21-24) which are present in the same area as the electronic device, e.g. from a manual configuration, determine a quantity of the local beacon systems and/or locations of the local beacon systems, and provide one or more location-based functions based on the one or more wireless signals in dependence on the quantity of the local beacon systems and/or the locations of the local beacon systems.

Abstract: An illumination system for cultivation of aquatic animals is disclosed for cultivation of aquatic animals in a volume of water, the cultivation using a feeding system defining a feeding axis in the volume of water. The system comprises at least a first illumination surface positioned in the volume of water and arranged for illuminating the feeding axis. The system also comprises a second illumination surface positioned in the volume of water and arranged for illuminating the feeding axis. The first illumination surface and second illumination surface are different surfaces arranged to illuminate the feeding axis from substantially different directions.

Abstract: A lighting device includes a first string of light emitting diodes (LEDs) configured to emit a warm white light having a warm Correlated Color Temperature (CCT). The lighting device further includes a second string of LEDs configured to emit a cool white light having a cool CCT. The lighting device also includes green light LEDs that emit a green light. A flux of the green light is controlled based on a flux of the cool white light or a flux of the warm white light. The flux of the warm white light and the flux of the cool white light change proportionally with respect to each other.

Abstract: A modular troffer luminaire includes a housing having a perimeter frame, and a first light module removably attached to the housing. The first light module is replaceable by a second light module after the modular troffer luminaire is installed, where the first light module comprises an LED light source and an optic. The modular troffer luminaire further includes a sensor attached to the perimeter frame. The first light module is controllable based on sensing information from the sensor.

Abstract: There is provided a driver having a primary output, for a primary load, and an auxiliary output, for an auxiliary load. A power supply of the driver supplies power to both outputs. Connection or disconnection of an auxiliary load is determined by detecting a change in power consumption at the auxiliary output, and an action is performed by a driver controller in response to this change in power consumption.

Abstract: The invention relates to a power providing system (1) comprising a power providing device (2) like a PSE and an electrical device (4) like a PD. In a classification mode in a first phase the power providing device provides one or several voltage pulses and the electrical device draws one or several classification current pulses for indicating the class of the electrical device, wherein in a second phase the power providing device provides one or several voltage pulses for indicating the class of the power providing device. Thus, the indication of the classes of the electrical device and of the power providing device is decoupled in two different phases, which can lead to an improved mutual classification procedure.

Abstract: An adjustable light fixture can include a housing having at least one wall that forms a first cavity, wherein in the housing has a top portion and a bottom end. The fixture can also further include a body having a first body portion and a second body portion, where the body is movably disposed within the first cavity of the housing, where the body is configured to have a plurality of positions relative to the housing. The adjustable light fixture can also include a resilient device disposed between the first body portion and the second body portion to simultaneously push the first body portion against the top portion of the housing and the second body portion against the bottom end of the housing when the body is in each of the positions relative to the housing.

Abstract: A crowd entertainment system (100) is disclosed comprising a set of devices (110, 112) for generating an ambience observable from a crowd location (10), said ambience comprising at least one of a visual component and an audible component; and a controller (130) adapted to control said set of devices, the controller arranged to obtain data pertaining to a crowd behaviour parameter (131) indicative of the behaviour of a crowd in said crowd location from at least one crowd behaviour observation device and obtain the crowd behaviour parameter from said data; obtain a crowd composition parameter (133) indicative of a composition of said crowd from a crowd composition parameter source; select an ambience definition from a plurality of ambience definitions as a function of the obtained crowd behaviour parameter and crowd composition parameter, each of said ambience definitions being labelled with at least one particular crowd composition parameter; and control at least a subset of said set of devices in accordance w

Abstract: A modular lighting installation platform includes a home base unit that is configured to be used as a junction box. The home base unit includes a housing that defines a cavity. The cavity houses circuitry that configured to convert a high voltage AC input power to a low voltage DC output power. The home base unit also includes an output port that is configured to removably couple at least one of a light fixture and an accessory to the home base unit via a low voltage cable to provide the low voltage DC output power to the at least one of a light fixture and an accessory.

Abstract: There is provided an electrical arrangement (100), comprising at least one electrical unit (110), which in its turn comprises electrical element(s) (120) with electrical contact point(s) (130a, 130b) and electrically conductive track(s) (140a, 140b) arranged in contact with the electrical contact point(s) of the electrical element(s). The electrical arrangement further comprises a substrate (145), N for supporting the electrical unit, and component(s) (120) for connecting portions of the substrate. The material of the component(s) is resizable upon processing of the material, such that, upon processing of the component(s), at least one of the electrical element(s) and the electrically conductive track(s) of the electrical unit(s) are squeezed at the respective electrical contact point by the first and second portions of the substrate biased by the force from the component(s).

Abstract: The invention relates to a management unit (1) and a method for operating such a unit in a Power-over-Ethernet (PoE) installation. The management unit (1) comprises at least one first port (12a) to which an external device (2) can be connected, and it is adapted to control the power delivered at a first port (12a) in dependence on predetermined switching rules.

Abstract: A system for performing at least one supplemental service relative to a user in a volume of space. The system can include a electrical device disposed at a location in the volume of space and including a receiver, a supplemental service module, and a controller, where the receiver has a communication range, where the controller controls the timer, and where the electrical device performs a primary function. The system can also include a user device of a user disposed within the communication range, where the user device includes a beacon that sends at least one communication signal. The controller, upon the receiver receiving the at least one communication signal, can initiate, using the at least one supplemental service module, the at least one supplemental service that is unrelated to the primary function of the electrical device.

Abstract: An end cap for a light fixture is described herein. The end cap can include a body having at least one wall and at least one coupling feature, where the at least one wall has an inner surface and an outer surface, and where the at least one coupling feature is configured to couple the body to another component of the light fixture. The end cap can also include a first knockout disposed in the at least one wall, where the first knockout is configured to be removed to generate a first aperture in the at least one wall, where the first aperture is configured to receive a first electrical enclosure. The end cap can further include a second knockout disposed in the at least one wall, where the second knockout is configured to be removed to generate a second aperture in the at least one wall.

Abstract: A projection system includes a recessed projection fixture that includes a lighting module configured to emit a light and a projection module configured to project an image. The light emitted by the lighting module is used for projecting the image and for illumination. The projection system further includes a sensor, where the projection module projects the image in response to an occupancy detection by the sensor. The recessed projection fixture is oriented to direct the image toward a surface below the recessed projection fixture.

Abstract: A lighting device (1) is disclosed. The lighting device (1) comprises: a communication unit (10) for wireless communication between the lighting device (1) and an external device; a solid-state lighting element (3) electrically connected to the communication unit (10); a heat sink (5) in thermal contact with the solid-state lighting element (3), the heat sink (5) having a slot (5a) adapted to act as a slot antenna; and a feed antenna (11) electrically connected to the communication unit (10), the feed antenna (11) having at least one end tip arranged at the slot (5 a) so as to enable the feed antenna (11) and the slot (5a) to communicate by proximity coupling.

Abstract: A system for emitting light (such as a luminaire) includes a first light emitting diode (LED) string and a first LED driver that is electrically connected in parallel to the first LED string. The system also may include a second (or more) LED string(s), each associated with an additional LED driver. One-way conductors and normally-open switches are used so that if one LED driver fails, the remaining LED driver(s) will deliver power to the failed driver's LED string so that the light remains operational, but with a reduced brightness.

Abstract: A lighting module includes an LED light source and a power source coupled to the LED light source. The LED light source is powered by the power source. The power source includes an auxiliary output connection that is terminated at a standardized connector. The power source provides power to an auxiliary device via the standardized connector.