The light fixture includes a frame configured to define a channel, and a substantially flat light emitting diode (LED) panel disposed within the frame. Power circuitry is disposed within the first channel, the power circuitry being configured to electrically couple the substantially flat LED panel to an external AC power supply. The power circuitry is sized to be positioned within the first channel and has a length and a width, the length-to-width ratio being at least 5 to 1, and optionally at least 10 to 1. The power circuitry is configured to convert an AC input into a DC output suitable for powering the substantially flat light emitting diode (LED) panel. The substantially flat light emitting diode (LED) panel includes an optically transmissive panel, and an array of LEDs disposed adjacent to an edge of the optically transmissive panel and disposed adjacent at least one edge of the frame.

A system comprises a plurality of components connected in a wireless network and at least one unconnected (new) component available to join the network. The components are divided amongst a plurality of luminaires, each comprising a respective subgroup of the components including at least one lamp, and each subgroup has a respective subgroup ID. At least a first one of these components is configured to automatically detect whether a previously-present one of the components from the same respective subgroup as the first component is missing from the network. In response to detecting that the previously-present component is missing, the first component automatically causes the new component to be joined to the wireless network, and to be assigned to the same subgroup as the first component under the same subgroup ID.

A light emitting element driving device includes a first and second driving circuits, an abnormality detecting portion, a bypass path, and a switching portion. The first driving circuit can supply power to a light emitting element in a first mode, and is disabled to supply power in a mode other than the first mode. The second driving circuit can supply power to a light emitting element in a second mode. The abnormality detecting portion detects an abnormality of the light emitting element normally connected to the second driving circuit at least in the second mode. The bypass path connects the first driving circuit to the second driving circuit. The switching portion is disposed in the bypass path so as to make the bypass path into a conductive state when an abnormality is detected, and to make the bypass path into a cutoff state when an abnormality is not detected.

An emergency lamp has a first line contact configured for connection to a first line. A second line contact is configured for connection to a second line. The second line is not switched. A neutral line contact is configured for connection to a neutral line. The voltage checker changes a mode of a main driver enablement signal and an emergency driver enablement signal when the voltage checker does not sense voltage. The voltage checker is electrically connected to the second line. A main driver is powered by the first line and the neutral line. The main driver is controlled by the main driver enablement signal. An emergency driver is powered by a battery. The battery is maintained by a charge controller. The charge controller is powered by the second line and the neutral line. The emergency driver is controlled by an emergency driver enablement signal.

The present invention discloses a lighting system, comprising: an emergency power supply assembly, a lighting assembly, at least one first electrical connection for connecting the emergency power supply assembly, and at least one second electrical connection for connecting the lighting assembly, wherein the at least one first electrical connector and the at least one second electrical connector work with each other to form a quick connection between the emergency power supply assembly and the lighting assembly. The present invention also discloses an emergency power supply assembly. The present invention further discloses a lighting assembly. The present invention also discloses a lighting system installation method.

The light fixture includes a frame configured to define a channel, and a substantially flat light emitting diode (LED) panel disposed within the frame. Power circuitry is disposed within the first channel, the power circuitry being configured to electrically couple the substantially flat LED panel to an external AC power supply. The power circuitry is sized to be positioned within the first channel and has a length and a width, the length-to-width ratio being at least 5 to 1, and optionally at least 10 to 1. The power circuitry is configured to convert an AC input into a DC output suitable for powering the substantially flat light emitting diode (LED) panel. The substantially flat light emitting diode (LED) panel includes an optically transmissive panel, and an array of LEDs disposed adjacent to an edge of the optically transmissive panel and disposed adjacent at least one edge of the frame.

In accordance with disclosed embodiments, there are provided systems, methods, and apparatuses for implementing a smart beacon monitoring system supported by a processor and a memory to execute such functionality. For instance, in accordance with one embodiment there is an Internet of Things (IOT) beacon, which includes: a light source; a Remote Transmission Unit (RTU) to communicate with a remote centralized communication station over a network; a plurality of sensors, each to collect telemetry data at the IOT beacon; in which the RTU is to transmit the collected telemetry data from the plurality of sensors to the remote centralized communication station over the network for analysis; in which the remote centralized communication station is to identify a current or predicted failure condition at the IOT beacon based on the analysis of the collected telemetry data from the plurality of sensors; and in which the remote centralized communication station is to initiate one or more alerts to have service personnel perform maintenance to correct the identified current or predicted failure condition at the IOT beacon. Other related embodiments are disclosed.

An emergency lighting device includes a housing, a light emitter positioned in the housing, a control circuit positioned in the housing and operatively connected to the light emitter, an indicator light positioned in the housing, and a fault indicator circuit positioned in the housing and operatively connected to the indicator light. The fault indicator circuit is configured to monitor the light emitter, analyze activation of the light emitter, and activate the indicator light based on the analysis of the activation of the light emitter.

An illumination system and methods for controlling the illumination system are provided. In one embodiment, the method includes providing a plurality of illumination sources, monitoring optical output power of the plurality of illumination sources over a period of time, and controlling the plurality of illumination sources to maintain a predetermined level of optical output power. The method further includes compensating for degradations of one or more of the plurality of illumination sources to maintain the predetermined level of optical output power, predicting a lifetime of the illumination system based on the parameters of the plurality of illumination sources, and performing periodic maintenance of the plurality of illumination sources according to a quality control schedule.

According to the present disclosure, an optoelectronic component is provided with an organic layer stack, in which light is generated in operation of the optoelectronic component, at least one marking element, by means of which the optoelectronic component is identifiable, wherein the at least one marking element can be read out under irradiation using electromagnetic radiation from the nonvisible spectral range, the at least one marking element can be read out at a main surface of the optoelectronic component, and wherein the at least one marking element is arranged at or under the main surface in the region of the illuminated area.