A light unit used in train tunnels is readily mountable and removable from a mounting bracket. The mounting bracket allows the battery backup system and light engine to be gravity mounted in manner that allows for quick and easy mounting and removal while also resisting vibrations and wind. A quick disconnect fitting can be used with the power cord to allow the units to be removed and replaced as needed. The light unit integrates the light engine with a battery backup system so that the entire light and battery unit is removed and replaced when necessary.

An LED downlighting apparatus includes a housing with a sidewall having a front facing edge and a back facing edge positioned adjacent to a ceiling when the LED downlighting apparatus is installed in an opening of the ceiling. A depth of the sidewall is less than one inch and a thickness of at least a portion of the sidewall is less than three millimeters. An LED board and a lens are coupled to the housing. The lens is disposed with respect to the LED board such that the lens is illuminated from a back side. One or more mechanical couplers snap fit the apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snap fit to the junction box through the opening of the ceiling, the housing appears to be surface mounted to the ceiling.

An emergency lighting system uses a wireless mesh network to control the dimming of luminaires in the event of a power failure or a power outage. Luminaires are commissioned to different dimming power levels depending on localized lighting needs during the power failure of power outage.

A safety device cabinet includes an equipment cabinet, a safety switch having an integrated light, a switch logic circuit and a battery back-up. The safety device cabinet includes an equipment cabinet and an access door. The access door includes a window and an edge light emitting device. The window is etched with a message containing a description of the equipment stored in the equipment cabinet. The safety switch with an integrated light includes a push momentary switch, a light bezel and a bezel light source. An inner perimeter of the outer shell is sized to receive a push button of the push momentary switch. The light bezel preferably includes an opening to receive a light emitting portion of the light source. The switch logic circuit preferably includes a AC to DC converter, a microprocessor, a software program and a monitoring device.

A lighting assembly is configured to create an emergency notification. The lighting assembly has a housing with a housing first surface and a housing second surface. A plurality of strobe lights is arranged into at least one row and at least four columns. A direct current power system is joined to the plurality of strobe lights and further comprising a printed circuit board electrically coupled to radio frequency relay switch, and a battery. A wireless remote is communicatively coupled to the radio frequency relay switch. Activating the wireless remote directs the printed circuit board to provide power to the plurality of strobe lights creating the emergency notification.

Light fixtures and safety detection systems are provided that enable smoke detection devices to be installed in a manner that is out-of-sight, thus alleviating the need to unsightly smoke detection devices to be installed throughout a building. The safety detection system comprises: an electrical fixture, for installation in a building; and a smoke detection device, for detecting at least smoke in the building. The smoke detection device is integrated with the electrical fixture such that the smoke detection device is concealed when installed.

A multifunction LED lighting device improves technical and functional performance compared to known lighting appliances, while also optimizing yield and satisfying demand for aesthetics and reduced consumption. The device includes: a lighting body including an LED assembly; a frame for connecting to the wall and supporting the at least a lighting body; an electrical connection and mechanical connection between the frame and the at least a lighting body; and an electronic circuit board for converting to low voltage and supplying power to the LED assembly. The lighting body is substantially L-shaped and includes an upright and a projecting arm. The upright includes the electrical connection and the mechanical connection, and the arm includes the LED assembly. The electrical connection and the mechanical connection include a connector of male/female type with reversible coupling.

Disclosed herein is an illumination unit and the method of operation thereof, characterized in that it comprises: a photovoltaic module (A), a ceiling light fixture (B), a supporting structure (A1), a shaped line (B1), two side wings (B2), a certain number of spaces (C), optical elements/means (C1), a control unit (D), an electric storage unit (E), a separate printed circuit (F), a string (F1), a cooling fan (G).

An emergency light system connected to a battery unit comprises a LED driver to be powered by a switched power source, a light fixture to provide light when powered, and a link driver. The link driver comprises driver connectors powered by the LED driver, battery connectors powered by the battery unit, powering connectors connected to the light fixture, and an internal transfer device adapted to switch power source powering the power connectors from the driver connectors to the battery connectors upon detection of a power outage. Also described is the link driver to retrofit a light fixture connected to a battery unit into an emergency light system.

A lighting fixture configured to expand and collapse, and methods for expanding and collapsing a light fixture are disclosed. Embodiments of the lighting fixture include a lighting fixture with a movable section that collapses into at least one cavity in a base housing for storage and shipment, and extends from the cavity for operation. In the collapsed configuration the lighting fixture fits into a smaller container than when the lighting fixture is in the expanded configuration. In some embodiments a locking member locks the movable section into its extended position and can be retracted by a user by manually disengaging the locking member. Accessories and extenders that can be attached to the lighting fixture can be stored in the one or more cavities into which the movable section is stowed in the collapsed configuration.