A lighting device and system having a faceplate and a backplate. The faceplate or the backplate may have an arm or a set of arms having electrical conductors to connect or couple to the electrical contact points of an outlet, plug, or switch. The operational modes may be in an emergency lighting mode and a nightlight mode. The voltage source can be connected to a light source or sensor through the control circuit or the switch, and the light source may be activated based on the output of the sensor. A controller is connected to the sensor can send or receive wireless signals through a wireless module.

A light-emitting system is provided which is removably attachable to headgear for personal illumination to enhance visibility of the user to others. The light-emitting system includes a housing that defines a receiving aperture and is configured to surround a portion of the headgear when the light-emitting system is removably attached to the headgear for use. The light-emitting system further includes at least one lens and a plurality of lighting elements coupled to the annular housing which are configured to selectively generate a halo or at least a partial halo of light that radiates outwardly away from the annular housing through the at least one lens to provide enhanced personal illumination.

Disclosed is a helmet provided with a radar reflector. The helmet includes a helmet body formed in a shape corresponding to a shape of a user head, and the radar reflector mounted on an outer surface of the helmet body to reflect a radar signal transmitted from radar equipment. The radar reflector includes a plurality of reflection units each concaved in a trigonal pyramid shape having one opened surface, each of the plurality of reflection units reflecting the radar signal. Thus, by applying the radar reflector to the helmet of a user aboard an object to be detected by using a radar signal, the radar signal is effectively reflected in bad weather or at night, thereby improving the recognition rate of radar equipment.

A light fixture for a public transportation train system powers an antenna used for train signaling. The antenna can provide to the train a location marker associated with the location of the antenna. The antenna can provide to the train other data communicated to the light fixture through the light fixture communication system.

Described is signalling device for extinguishers or hydrants, comprising a first valve body connected to a tank of liquid and/or powder product to be dispensed, a second valve body connected to a hose equipped with a nozzle for dispensing product and a handle for activating the dispensing of the product equipped with a control lever; inside the handle is housed a safety plug shaped in such a way as to keep the control lever in an inactive position. The plug has, at a relative end portion, a magnet, which activates a sensor present on an electronic card located inside the control lever, designed to detect the presence of the plug. Moreover, the plug is made of transparent plastic material and at least one LED is positioned on a base facing a lower portion of the plug, in such a way that the LED produces a luminous emission which spreads for the entire plug, thereby operating as a luminous wave guide.

A light socket surveillance system can be used to enable a first party to communicate with a second party. The light socket surveillance system can be used to detect an audible notification from the first party. In response to detecting the audible notification from the first party, the light socket surveillance system can initiate a communication session with a remote computing device of the second party.

Electronic light emitting flares and related methods. Flares of the present invention include various features such as self-synchronization, remote control, motion-actuated or percussion-actuated features, dynamic shifting between side-emitting and top-emitting light emitters in response to changes in positional orientation (e.g., vertical vs. horizontal) of the flare; overrides to cause continued emission from side-emitting or top-emitting light emitters irrespective of changes in the flare's positional orientation; use of the flare(s) for illumination of traffic cones and other hazard marking or traffic safety objects or devices, group on/off features, frequency specificity to facilitate use of separate groups of flares in proximity to one another, selection and changing of flashing patterns and others.

An integrated ceiling device includes a housing retaining an electronic assembly, a heat sink having a central opening, a light source coupled onto the heat sink, the housing is coupled with and disposed at least partly above the heat sink, and a central vertical axis of the housing aligns or is in proximity with the central opening of the heat sink.

An emergency lighting unit includes a housing. The housing includes a base having a first portion and a second portion. A lamp assembly is rotatably connected to the housing and positioned in the lower portion. A cover is provided over the lamp assembly.

The invention relates to a luminaire network comprising a plurality of luminaires as well as a central unit, and comprising a central communication unit. A plurality of luminaires in the network comprises a communication unit configured to make it possible for the luminaires to communicate with each other and/or with the central communication unit, as well as a control unit configured to control the luminaire as well as the communication unit. The central unit comprises information about the location of the luminaires. A plurality of the luminaires in the luminaire network further comprise at least one sensor which can sense information relating to the environment of the luminaire, wherein the communication unit of said luminaires is configured to send messages relating to the sensed information to the central communication unit, and the central unit is configured to analyze the received messages and to output the results of the analysis.