Abstract: Devices (1) for producing light comprise inputs (11) for receiving feeding signals via ballasts (2) designed for fluorescent tubes to be replaced by non-fluorescent tubes, drivers (12) for driving light circuits (13), first receivers (14) for receiving definition signals defining features of the ballasts (2), and controllers (15) for, in response to receptions of the definition signals, adapting functions of the devices (1). The functions may comprise reporting functions, whereby apparatuses (3) are informed by the devices (1) about amounts of consumed power of the devices (1) and amounts of consumed power of the ballasts (2). Then, for example in dimming situations, overviews of total amounts of consumed power are realized. The functions may comprise driving functions whereby the light circuits (13) are driven in accordance with requirement data of the ballasts (2). Then, for example in dimming situations, first dimming levels may be forbidden and second dimming levels may be allowed.

Abstract: A lighting controller and a control method make use of a fade time over which the light source is to be controlled when adjusting the light source output from a first dimming level to a second dimming level. The fade time is selected in dependence on both the difference between the first and second dimming values and the absolute values of the first and second dimming levels. This enables smooth fading over a long time when desired for a high quality fading with no flicker, or rapid fading between brightness levels when the speed of response is more important.

Abstract: A system for transmitting a logical Digital Addressable Lighting Interface (DALI) signal wirelessly is disclosed. The system comprises a transmitter (300) for transmitting the logical DALI signal and a receiver (302) for receiving the transmitted signal. The transmitter comprises a first coil (310) that is inductively coupled to a second coil (314) in the receiver. The transmitter comprises a first conversion module (306) that is configured to receive the logical DALI. The first conversion module, comprises a first amplifier (307) for amplifying the logical DALI signal so as to generate a drive current for the first coil to generate an induction signal in the second coil. The receiver (302) comprises the second coil (314) inductively coupled to the first coil for receiving the induction signal. Additionally, the receiver comprises a second conversion module (318) coupled to the second coil for converting the received induction signal into a reconstructed logical DALI signal.

Abstract: Devices (1) for producing light comprise inputs (11) for receiving feeding signals via ballasts (2) designed for fluorescent tubes to be replaced by non-fluorescent tubes, drivers (12) for driving light circuits (13), first receivers (14) for receiving definition signals defining features of the ballasts (2), and controllers (15) for, in response to receptions of the definition signals, adapting functions of the devices (1). The functions may comprise reporting functions, whereby apparatuses (3) are informed by the devices (1) about amounts of consumed power of the devices (1) and amounts of consumed power of the ballasts (2). Then, for example in dimming situations, overviews of total amounts of consumed power are realized. The functions may comprise driving functions whereby the light circuits (13) are driven in accordance with requirement data of the ballasts (2). Then, for example in dimming situations, first dimming levels may be forbidden and second dimming levels may be allowed.

Abstract: The present invention provides a method for commissioning of nodes of a network. The method comprises the steps of (S10) receiving, at a first node (30a) of the network, at least one indication message including identification information of a second node (30b) of the network; (S20) receiving, at the first node (30a), parameter information indicating a parameter sensed with at least one parameter sensor associated with the first node (30a); (S30) determining whether the at least one indication message and the parameter information temporarily correlate; and (S40), if a correlation is determined, adding correlation information about the second node (30b) to a register table of the first node (30a).

Abstract: A lighting controller and a control method make use of a fade time over which the light source is to be controlled when adjusting the light source output from a first dimming level to a second dimming level. The fade time is selected in dependence on both the difference between the first and second dimming values and the absolute values of the first and second dimming levels. This enables smooth fading over a long time when desired for a high quality fading with no flicker, or rapid fading between brightness levels when the speed of response is more important.

Abstract: Embodiments described herein comprise a driver unit for driving a load including a plurality of load elements. In one example, the driver unit comprises a plurality of driver devices connected to the load elements for driving the load elements individually. The driver unit comprises a control interface for receiving a power control signal. Each driver device comprises a driver interface connected to the control interface for receiving the power control signal including single general power demand to be set by the driver unit, and each driver device is adapted to determine an individual power level on the basis of the single general power demand and to drive the load elements according to the individual power signal, so that at least one of the plurality of driver devices is configured to be switched off when the single general power demand is decreased.

Abstract: A module comprises messaging logic configured to generate a same message for a plurality of destination lighting devices. The message comprises a first portion specifying the plurality of destination lighting devices, and a common second portion specifying the message as being of a type that requests lighting device information. The module also comprises a port configured to output this same message to the plurality of destination lighting devices. If one of the destination lighting devices responds to the message, the processing module receives back the response from the responding device via the port. In addition to identifying the responding one of the destination lighting devices, the response also specifies the requested information of that lighting device.

Abstract: The present invention relates to a driver unit (18) for driving a load including a plurality of load elements (12), in particular a plurality of lighting elements (12) including one or more LEDs (16). The driver unit comprises a plurality of driver devices (20) connected to the load elements for driving the load elements individually. The driver unit comprises a control interface (22) for receiving a power control signal (24) including a single general power demand to be set by the driver unit. Each driver device comprises a driver interface (26) connected to the control interface for receiving the power control signal including the single general power demand, and each driver device is adapted to determine an individual power level on the basis of the single general power demand and to drive the load elements according to the individual power signal.

Abstract: The present invention provides a method for commissioning of nodes of a network. The method comprises the steps of (S10) receiving, at a first node (30a) of the network, at least one indication message including identification information of a second node (30b) of the network; (S20) receiving, at the first node (30a), parameter information indicating a parameter sensed with at least one parameter sensor associated with the first node (30a); (S30) determining whether the at least one indication message and the parameter information temporarily correlate; and (S40), if a correlation is determined, adding correlation information about the second node (30b) to a register table of the first node (30a).