A two-way communication Geographic Lighting Central Management System (GLCMS) to determine roadway lighting performance. Points, lines, polygons, etc, are used to define multiple geographic features overlaid on each other in a municipality relationships to dynamically establish street lighting performance including brightness, color temperature, and light distribution. The geographic data is accessible through a wide range of sources, and the geographic relationship between the data sources determines the lighting performance. Geographically represented features include, but are not limited to, lighting and associated infrastructure, pedestrian conflict, crime, roadway classifications, intersection classifications, lighting layouts, vehicular traffic volumes and road surface reflectance classifications.

A touch activated lighted sports ball is formed as a sphere having a core and an outer layer. A pair of electrodes are exposed on an exterior surface of the outer layer. An electronic circuit is disposed within the core. The electronic circuit has a battery, a lamp, an active circuit element, and an electronic switch. The electronic switch is connected to the pair of electrodes, and is responsive to current flowing through a low resistance path between the electrodes to energize the lamp.

A system and method comprised of an LED light strip whose electrically insulating core structure is somewhat flexible and elastic and whose alternating light producing sections and narrower clip sections have a top side containing LED elements and control signals and an underside containing a high capacity voltage bus, and a three sided mounting structure where an installed LED light strip is the fourth side with LED elements facing out and the voltage bus protected inside, and a clip system of two halves which affix to each other around a narrower clip section with a lower half connecting electrically to the voltage bus under the narrower clip section and installing in one side of the mounting structure and an upper half connecting electrically to control signals on the top half of the narrower clip section and installing in the other side of the mounting structure.

A system and method comprised of an LED light strip whose electrically insulating core structure is somewhat flexible and elastic and whose alternating light producing sections and narrower clip sections have a top side containing LED elements and control signals and an underside containing a high capacity voltage bus, and a three sided mounting structure where an installed LED light strip is the fourth side with LED elements facing out and the voltage bus protected inside, and a clip system of two halves which affix to each other around a narrower clip section with a lower half connecting electrically to the voltage bus under the narrower clip section and installing in one side of the mounting structure and an upper half connecting electrically to control signals on the top half of the narrower clip section and installing in the other side of the mounting structure.

A ceiling mounted light fixture includes a lens assembly including a central lens and a pair of side lenses. The central lens extends along a longitudinal axis, and each side lens extends parallel to the central lens and is positioned on a lateral side of the central lens. The fixture further includes at least one central light emitter for emitting light directly through the central lens and a pair of side light emitters. At least one control component operatively connected to the central light emitter and the side light emitters is configured to operate in a first mode in which the central light emitter is deactivated and the side light emitters are activated, and a second mode in which the central light emitter and the side light emitters are activated.

A color tunable lighting module is described which includes at least three solid state lighting emitters (such as light emitting diodes) and at least two wavelength converting elements (such as phosphors). The three solid state lighting emitters are formed of the same semiconductor material system and the light generated by them has dominant wavelengths in the blue-green-orange range of the optical spectrum. The two wavelengths converters are used re-emit some of the light from two of the emitters in broader spectra having longer dominant wavelengths, while the third emitter is selected to emit light at a wavelength between the dominant wavelengths of the light from the two emitters and the two converters. A control system may be employed to monitor and control the module and the lighting module can be optimized for tunable high color quality white light applications.

A lighting device, wherein the effectivity is increased and allows maintaining a simple manufacturing process, comprises: a housing having a longitudinal direction, the housing comprising: reflective side walls extending in the longitudinal direction, a first cavity disposed between the reflective side walls, and an opening of the first cavity for the passage of light from the first cavity; LEDs, each having a light-emitting face and side faces, wherein the LEDs are arranged on interposers for providing electrical connection of the LEDs, wherein the LEDs are arranged in the first cavity such that the LEDs are at least partially arranged along the longitudinal direction of the housing; and a reflection element that covers a side of the interposers facing the opening, wherein the reflection element surrounds the LEDs on the side faces, and is configured as strip comprising through holes in which the LEDs are arranged.

A lamp and an operating method for a lamp with an LED element 22 are described. An electrical circuit with the LED element 22 is covered by a cover member 12. A separation device 28 is provided to mechanically severe the electrical conductor 16a, 16b arrange to supply electrical power to the LED element 22 if the detector element 24 detects a defect of the cover member 12.

The invention relates to an underwater switch unit for voltage supply of electrical devices (11), particularly in the low voltage range, having a housing (19) which is preferably designed to be water-tight, in which an electronics unit (2) is arranged, by means of which an input voltage, which can be connected via an input connection of the underwater switch unit (14), can be distributed in parallel to a plurality of output connections (16) of the underwater switch unit (14), wherein at least two of the output connections (16) can be supplied with voltage separate from each other via at least one switch element (7, 8) of the underwater switch unit (14), and wherein the uncontrolled underwater switch unit (14) comprises a data bus connection having a related data bus interface, via which an informational signal concerning the voltage connection of an output connection (16) can be detected.

A backlight apparatus includes a circuit board, a control board, and a connection cable connecting the above components. A first light source driver and a second light source driver are disposed on the circuit board and are electrically connected to a plurality of first light sources and a plurality of second light sources respectively. A connector is disposed on the circuit board. The first and second light source drivers are individually electrically coupled in series to the connector. The control board outputs electrical power, a first data stream, and a second data stream. The first light source driver controls the first light sources to light individually according to the first data stream. The second light source driver controls the second light sources to light individually according to the second data stream. Thereby, the circuit board can control the operation of the light sources individually.