Abstract: The invention provides an improved device with a touch user interface for controlling a load. The device comprising: an array of individually controllable LED light sources; data lines for interconnecting successive LED light sources to obtain a daisy-chain of successive LED light sources in said array and for rippling control data through the daisy-chain to a particular LED light source in said array, wherein the particular LED light source in said array is arranged for removing one or more bits from the control data and for providing resulting control data downstream (i.e. e.g.

Abstract: The invention provides an improved device with a touch user interface for controlling a load. The device comprising: an array of individually controllable LED light sources; data lines for interconnecting successive LED light sources to obtain a daisy-chain of successive LED light sources in said array and for rippling control data through the daisy-chain to a particular LED light source in said array, wherein the particular LED light source in said array is arranged for removing one or more bits from the control data and for providing resulting control data downstream (i.e. e.g.

Abstract: A lighting device has at least two lighting strips, which are slidable relative to each other and overlap in a region of overlap so that the overall length may be adjusted. The combined light intensity per unit length of the lighting strips in the region of overlap corresponds to the light intensity per unit length of the first and second lighting strips outside the region of overlap. This arrangement makes sure the combined light output in the region of overlap is the same as where the lighting strips do not overlap. In this way, the overall device is reversibly and repeatedly extendable and retractable and maintains a relatively constant light output per unit length.

Abstract: A lighting device has at least two lighting strips, which are slidable relative to each other and overlap in a region of overlap so that the overall length may be adjusted. The combined light intensity per unit length of the lighting strips in the region of overlap corresponds to the light intensity per unit length of the first and second lighting strips outside the region of overlap. This arrangement makes sure the combined light output in the region of overlap is the same as where the lighting strips do not overlap. In this way, the overall device is reversibly and repeatedly extendable and retractable and maintains a relatively constant light output per unit length.

Abstract: The invention provides a method for providing horticulture light (511) to a crop (1), the method comprising sideways illuminating the crop (1) with the horticulture light (511) of a lighting device (500), the lighting device (500) comprising a grid (530) comprising a plurality of light emitting diodes (LEDs) (510) and a plurality of through holes (570), wherein one or more of the plurality of LEDs (510) are configured to provide said horticulture light (511).

Abstract: An LED light bulb has a light emitting bulb part 22 which comprises a central core 24 running from the top towards the bottom and which provides an open passageway at least at the top. The LEDs are mounted in thermal contact around the central core 24. This design provides an air flow to promote cooling of the LEDs. This in turn enables a reduced size and cost of the heat sink, or avoids the need for a heat sink altogether.

Abstract: An LED light bulb has a light emitting bulb part 22 which comprises a central core 24 running from the top towards the bottom and which provides an open passageway at least at the top. The LEDs are mounted in thermal contact around the central core 24. This design provides an air flow to promote cooling of the LEDs. This in turn enables a reduced size and cost of the heat sink, or avoids the need for a heat sink altogether.

Abstract: The invention provides a method for providing horticulture light (511) to a crop (1), the method comprising sideways illuminating the crop (1) with the horticulture light (511) of a lighting device (500), the lighting device (500) comprising a grid (530) comprising a plurality of light emitting diodes (LEDs) (510) and a plurality of through holes (570), wherein one or more of the plurality of LEDs (510) are configured to provide said horticulture light (511).