A lighting arrangement can include a luminaire, a driver circuitry assembly, and a battery backup portion. The luminaire can have light emitting diodes in an array string positioned in a first housing and a first wiring extending from the array string to a first plug connector. The driver circuitry assembly can drive the plurality of light emitting diodes and include circuitry with a rectifier and an IC chip positioned in a second housing and a second wiring extending from the circuitry to a second plug connector engageable with the first plug connector. The battery backup portion can be selectively positionable between the driver circuitry assembly and the external AC grid and have one or more batteries and a converter portion with a DC-AC inverter positioned in a third housing. The third housing and the second housing are interconnectable.

A lighting device may include a body including a front cavity and a back cavity, and a bottom face between the front cavity and the back cavity. The lighting device may also include multiple lights, with at least one of the lights disposed within the front cavity, and at least one of the lights disposed within the back cavity. The lighting device may additionally include a coupling device, such as a female threaded component, configured to interface directly with an attachment mechanism atop a traffic cone. The coupling device may be disposed on the bottom face of the body.

An emergency lighting head including an LED light surface and a reflector, wherein the reflector has a main body reflector portion and a crown reflector portion attached to the main body portion. The main body reflector portion has an inner reflective surface symmetrical about a central optical axis. The reflective surface has a first end for receiving the LED light surface and a second end opposite the first end. The crown reflector portion is attached to the second end of the main body reflector portion and has an inner reflective surface tilted inwardly from the second end of the main body reflector portion toward the central optical axis.

A system may include a light source. A converter may be configured to convert an AC voltage to a DC operating voltage during normal operation. A power backup device may be coupled to the converter. A current source may have a first terminal configured to receive the DC operating voltage during regular operation and a second terminal configured to provide a pulse-width modulated (PWM) signal to an anode end of the light source. A switching device may have a first connecting terminal coupled to the anode end of the light source, a second connecting terminal coupled to the power backup device, and a control terminal coupled to the converter. The switching device may be configured to open a switch between the first connecting terminal and the second connecting terminal during normal operation and close the switch upon detecting an interruption of the DC operating voltage at the control terminal.

A brown-out detection apparatus including a voltage sensing circuit, a first circuit, and a second circuit. The voltage sensing circuit senses an input AC voltage having a first nominal input voltage value or a second nominal input voltage value. The voltage sensing circuit includes an output outputting a reference DC voltage proportional said input AC voltage. The first circuit is responsive to said output of said voltage sensing circuit. The first circuit includes a first output outputting a first voltage value when said input AC voltage is below a threshold voltage level and a second voltage value when said input AC voltage is above said threshold level. The second circuit is responsive to said first output. The second circuit includes a second output outputting a second control signal indicative of a brown-out condition of said input AC voltage.

An elongate tubular lighting assembly having a body with a length between spaced first and second ends. The tubular lighting assembly has a source of illumination and first and second connectors respectively at the first and second body ends. The first connector has cooperating first and second parts having first and second surfaces. The first and second connector parts are configured so that the first and second surfaces are placed in confronting relationship to prevent separation of the first and second connector parts with the body in an operative state as an incident of the first connector part moving relative to the second connector part from a position fully separated from the second connector part in a substantially straight path that is transverse to the length of the body into an engaged position.

A lighting assembly including a shell, wherein the shell includes an inner wall defining an inner lumen, an outer wall encircling the inner wall, a set of radial fins connecting the inner and outer walls, the set of fins cooperatively defining a set of cooling channels between adjacent fins, the inner wall, and the outer wall; an insert removably mounted within the inner lumen, the insert defining a power storage lumen; a power storage unit arranged within the power storage lumen; a circuit board coupled to the power storage unit, the circuit board comprising a processor and communication module; a lighting module electrically connected to the circuit board, wherein the lighting module includes a substrate and a set of light emitting elements mounted to a first broad face of the substrate.

A lighting apparatus comprises an outer housing and a lamp mounting region comprising a support. At least one linear LED lamp has first and second end connectors at opposite ends, and each of the end connectors has a housing defining an opening. First and second support connectors have an integral mounting base configured to couple to the support and a second portion configured to be insertable through a respective one of the openings as an incident of the linear LED lamp moving relative to the support connectors from a position fully separated from the support connectors in a path that is transverse to the length of the body into an engaged position. The second portion of each support connector has a second surface configured to be placed into confronting relationship with a corresponding first surface of the corresponding end connector to prevent separation of the support connector and the end connector with the second portion of the support connector residing within the housing of the end connector in the engaged position.

A wall pack light fixture including a front cover having a recess with a contact surface and at least one electronic component mounted on the contact surface, a rear enclosure having a forward-facing open front with a forward-facing front edge, and a hinge having a first portion connected to the front cover and a second portion pivotably coupled to the first portion, the second portion connected to the rear enclosure on an exterior side surface of the rear enclosure behind the forward-facing front edge, wherein the front cover is rotatable about the hinge between a closed configuration, in which the contact surface is against the forward-facing front edge, and an open configuration.

The device includes a lighting module with a light source, a light source driver, and a cooling element; an emergency module with a housing, an emergency control and a battery pack; and a connector having a cavity, a first one end is connected to the lighting module, and a second end connected to the emergency module. The cavity of the connector forms a closed space which thermally separates the emergency module from the lighting module.