Activation of a far-red light device with a far-red light frequency that includes moonlight light that promotes the conversion of inactive Pfr to active Pr in short-day plants prior to a dark period.

A dimmer comprising a controller and a wireless adapter coupled to the controller. The dimmer is connected to a LED lamp through a switched AC line. The controller is configured to send to the lamp user control information, and provisioning information for allowing the lamp to distinguish the control information transmitted by the dimmer from control information transmitted by other dimmers in the vicinity of the lamp. For performing the provisioning, the controller is configured, after turning-ON the lamp, to wirelessly transmit thereto, at a provisioning frequency F0, provisioning information comprising an identification of an RF frequency Fn that is preselected as the dimmer-specific frequency for controlling the lamp, and to vary the wireless transmit frequency from F0 to Fn for henceforth sending thereat the control information to the lamp.

A dimmer comprising a controller and a wireless adapter coupled to the controller. The dimmer is connected to a LED lamp through a switched AC line. The controller is configured to send to the lamp user control information, and provisioning information for allowing the lamp to distinguish the control information transmitted by the dimmer from control information transmitted by other dimmers in the vicinity of the lamp. For performing the provisioning, the controller is configured, after turning-ON the lamp, to wirelessly transmit thereto, at a provisioning frequency F0, provisioning information comprising an identification of an RF frequency Fn that is preselected as the dimmer-specific frequency for controlling the lamp, and to vary the wireless transmit frequency from F0 to Fn for henceforth sending thereat the control information to the lamp.

An LED display driven by a dual-negative-voltage power supply is provided. The LED display includes a power supply interface and a display module. The power supply interface includes a first electrode, a second electrode, and a third electrode. The display module includes a substrate, the substrate is provided with a connection terminal having a first port, a second port, and a third port. The first electrode is coupled with the first port via a first wiring harness. The second electrode is coupled with the second port via a second wiring harness. The third electrode is coupled with the third port via a third wiring harness. A potential difference between the first electrode and the second electrode provides a first voltage. A potential difference between the first electrode and the third electrode provides a second voltage. The display module is configured to be powered with the first and second voltages.

A light bulb or fixture design is presented with dual types of light spectra (visible and invisible UV), having economic benefits stemming from the use of a single bulb, single bulb socket, and single fixture capable of providing selection of different spectra type illumination states and other types of adjustability with a minimum of additional bulbs, additional wiring, additional fixtures and additional instruction in use.

A semiconductor light-emitting device includes a junction between doped semiconductor layers, a first set of multiple independent contacts connected to a first doped layer and a second set of one or more contacts connected to the second doped layer. Multiple conductive vias connect the independent contacts to the first doped layer, enabling differing corresponding via currents to be applied to the first doped layer through the vias independent of one another. A spatial distribution of via currents among the multiple vias can be selected to yield a corresponding spatial distribution of emission intensity. Alteration of the via current distribution results in corresponding alteration of the emission intensity distribution; such alterations can be implemented dynamically. Multiple devices can be arranged as a light-emitting array.

A lighting control device controls illumination of a lighting device using a plurality of light sources. The lighting control device includes a processing unit that executes processing related to control on the illumination. The processing unit acquires direction designation information for designating at least one illumination direction to which the lighting device illuminates, acquires light source information indicating a plurality of light source irradiation directions that are irradiation directions of the plurality of light sources, and based on (i) at least one designated illumination direction that is the at least one illumination direction designated by the direction designation information and (ii) the plurality of light source irradiation directions, causes part of the plurality of light sources to illuminate.

A control device configured for use in a load control system to control one or more electrical loads may comprise an actuation member having a front surface defining a touch sensitive surface configured to detect a point actuation along at least a portion of the front surface, a touch sensitive circuit, and a control circuit. The touch sensitive device may comprise one or more receiving capacitive touch pads located behind the actuation member and arranged in a linear array adjacent to the touch sensitive surface. The control circuit may be configured to operate using different filtering techniques based on the state/mode of the control device and/or based on whether the positions of point actuations by a user along the touch sensitive surface indicate a fine tune or gross adjustment by the user. For example, the control circuit may generate an output signal using light/no filtering or using heavy filtering.

A control device configured for use in a load control system to control one or more electrical loads may comprise an actuation member having a front surface defining a touch sensitive surface configured to detect a point actuation along at least a portion of the front surface, a touch sensitive circuit, and a control circuit. The touch sensitive device may comprise one or more receiving capacitive touch pads located behind the actuation member and arranged in a linear array adjacent to the touch sensitive surface. The control circuit may be configured to operate using different filtering techniques based on the state/mode of the control device and/or based on whether the positions of point actuations by a user along the touch sensitive surface indicate a fine tune or gross adjustment by the user. For example, the control circuit may generate an output signal using light/no filtering or using heavy filtering.