Abstract: Exemplary lighting systems, light fixtures, and wireways that can be used in a variety of public transportation or architectural applications are described. The light engines can be edge lit and sealed. The light engine includes an internal flange that engages a portion of the light diffuser assembly to force the light diffuser assembly against a seal to allow the light engine to be assembled with fasteners disposed at the top of the light engine. The wireways can include a common routing compartment disposed above a plurality of wiring channels.

Abstract: A light fixture with a sensor port that allows a sensor to be connected to the light fixture. The connection provides power to the sensor. The connection also provides a communications link between the sensor and the light fixture which allows data generated by the sensor to be communicated from the light fixture to a remote location with the communications devices used by the light fixture to report battery test results. A plurality of these light fixtures and sensors are combined together to define a sensor network.

Abstract: A light fixture and wireway assembly is provided in a low-profile configuration wherein at least a portion of a plurality of wireways are disposed in a stacked configuration with a low-profile, edge-lit LED light engine. In one configuration, at least portions of two to four individual wireways are disposed in a stacked configuration with a low-profile, edge-lit LED light engine powered by an LED power supply also disposed within the outer perimeter of the overall assembly. Each wireway can be accessed through a single wireway wall without requiring conduit outside of the outer perimeter of the assembly.

Abstract: 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.

Abstract: The disclosure provides an LED light system that is easy to install and customizable by the user. The LED lighting system may be plugged directly into an existing power source. In one configuration, the system includes a power supply that accepts standard power inputs. A low voltage bus line extends from the power supply. The user may connect LED light modules at essentially any location along a low voltage bus line of the system so that the light modules are located exactly where the user desires light. Uneven spacing is possible. Different size lights, different lumen powers, and different-colored light modules may be disposed along the low voltage bus line. Security features may be used to reduce the value of the system components to a thief.

Abstract: A light fixture and wireway assembly is provided in a low-profile configuration wherein at least a portion of a plurality of wireways are disposed in a stacked configuration with a low-profile, edge-lit LED light engine. In one configuration, at least portions of two to four individual wireways are disposed in a stacked configuration with a low-profile, edge-lit LED light engine powered by an LED power supply also disposed within the outer perimeter of the overall assembly. Each wireway can be accessed through a single wireway wall without requiring conduit outside of the outer perimeter of the assembly.

Abstract: 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.

Abstract: A light fixture and wireway assembly is provided in a low-profile configuration wherein at least a portion of a plurality of wireways are disposed in a stacked configuration with a low-profile, edge-lit LED light engine. In one configuration, at least portions of two to four individual wireways are disposed in a stacked configuration with a low-profile, edge-lit LED light engine powered by an LED power supply also disposed within the outer perimeter of the overall assembly. Each wireway can be accessed through a single wireway wall without requiring conduit outside of the outer perimeter of the assembly.

Abstract: Controlled environment light fixture configurations include an LED light source. The light fixtures can be installed and removed from below the ceiling. The light fixture can be installed and removed without opening the lens frame of the light fixture. The light fixture includes a sealed housing and seals to the ceiling when installed. The light fixtures are provided in exterior dimension sizes that allow the fixtures to be installed in a variety of controlled environment ceilings in recessed configurations. The lower surface exposed to the controlled environment is free of welds and grinds in order to provide a corrosion resistant surface.

Abstract: LED lighting systems, mounting configurations, and light fixtures are disclosed for original and retrofit configurations. Some configurations mount the light fixture with a mounting bracket that allows for the removal and replacement of the light fixture in about the same time as a traditional light bulb change. Some configurations provide for fuse removal and replacement without the need to dismount the light fixture from its mounting bracket or without the need to open the housing of the light fixture to access the fuses. Some configurations use a battery backup system and self-check methods with LED light fixtures configured for public transportation applications.

Abstract: A temporary task lighting system used on job sites has an alarm mode. The system may be used to provide an alarm indication using the light units of the system. The alarm indication may be cycling the lights through on and off conditions or full on and dimmed conditions. Different systems and methods may be used to activate the alarm. The alarm activation may come from a typical fire alarm switch, a button on the power supply, a button on a central control computer, or a signal from an emergency response system such as a 911 system. The disclosure also provides central control for remote drivers and ballasts. The central control allows different zones of low voltage lighting systems or different zones of low voltage lights to set up, identified, and individually controlled from a central interface.

Abstract: LED lighting systems, mounting configurations, and light fixtures are disclosed for original and retrofit configurations. Some configurations mount the light fixture with a mounting bracket that allows for the removal and replacement of the light fixture in about the same time as a traditional light bulb change. Some configurations provide for fuse removal and replacement without the need to dismount the light fixture from its mounting bracket or without the need to open the housing of the light fixture to access the fuses. Some configurations use a battery backup system and self-check methods with LED light fixtures configured for public transportation applications.

Abstract: LED lighting systems, mounting configurations, and light fixtures are disclosed for original and retrofit configurations. Some configurations mount the light fixture with a mounting bracket that allows for the removal and replacement of the light fixture in about the same time as a traditional light bulb change. Some configurations provide for fuse removal and replacement without the need to dismount the light fixture from its mounting bracket or without the need to open the housing of the light fixture to access the fuses. Some configurations use a battery backup system and self-check methods with LED light fixtures configured for public transportation applications.

Abstract: A light fixture with a sensor port that allows a sensor to be connected to the light fixture. The connection provides power to the sensor. The connection also provides a communications link between the sensor and the light fixture which allows data generated by the sensor to be communicated from the light fixture to a remote location with the communications devices used by the light fixture to report battery test results. A plurality of these light fixtures and sensors are combined together to define a sensor network.

Abstract: LED lighting systems, mounting configurations, and light fixtures are disclosed for original and retrofit configurations. Some configurations mount the light fixture with a mounting bracket that allows for the removal and replacement of the light fixture in about the same time as a traditional light bulb change. Some configurations provide for fuse removal and replacement without the need to dismount the light fixture from its mounting bracket or without the need to open the housing of the light fixture to access the fuses. Some configurations use a battery backup system and self-check methods with LED light fixtures configured for public transportation applications.

Abstract: A temporary task lighting system used on job sites has an alarm mode. The system may be used to provide an alarm indication using the light units of the system. The alarm indication may be cycling the lights through on and off conditions or full on and dimmed conditions. Different systems and methods may be used to activate the alarm. The alarm activation may come from a typical fire alarm switch, a button on the power supply, a button on a central control computer, or a signal from an emergency response system such as a 911 system. The disclosure also provides central control for remote drivers and ballasts. The central control allows different zones of low voltage lighting systems or different zones of low voltage lights to set up, identified, and individually controlled from a central interface.

Abstract: A modular lighting assembly uses LED banks as the light sources. The assembly allows the power supply and LED banks to be independently replaced. The assembly uses a power supply that is separated from the LED banks and electrically connected to the LED banks with a plug connector that may be unplugged and plugged back in to allow the power supply or LED bank to be independently and readily replaced. The assembly provides for easy replacement of the different components of the assembly. One feature that makes the components easier to replace is that the light modules and/or the power supply may be carried by the housing that is removable from the base mount that is secured to a mounting structure such as a wall or ceiling.

Abstract: A modular lighting assembly uses LED banks as the light sources. The assembly allows the power supply and LED banks to be independently replaced. The assembly uses a power supply that is separated from the LED banks and electrically connected to the LED banks with a plug connector that may be unplugged and plugged back in to allow the power supply or LED bank to be independently and readily replaced. The assembly provides for easy replacement of the different components of the assembly. One feature that makes the components easier to replace is that the light modules and/or the power supply may be carried by the housing that is removable from the base mount that is secured to a mounting structure such as a wall or ceiling.

Abstract: A temporary task lighting system used on job sites has an alarm mode. The system may be used to provide an alarm indication using the light units of the system. The alarm indication may be cycling the lights through on and off conditions or full on and dimmed conditions. Different systems and methods may be used to activate the alarm. The alarm activation may come from a typical fire alarm switch, a button on the power supply, a button on a central control computer, or a signal from an emergency response system such as a 911 system. The disclosure also provides central control for remote drivers and ballasts. The central control allows different zones of low voltage lighting systems or different zones of low voltage lights to set up, identified, and individually controlled from a central interface.

Abstract: A modular lighting assembly uses LED banks as the light sources. The assembly allows the power supply and LED banks to be independently replaced. The assembly uses a power supply that is separated from the LED banks and electrically connected to the LED banks with a plug connector that may be unplugged and plugged back in to allow the power supply or LED bank to be independently and readily replaced. The assembly provides for easy replacement of the different components of the assembly. One feature that makes the components easier to replace is that the light modules and/or the power supply may be carried by the housing that is removable from the base mount that is secured to a mounting structure such as a wall or ceiling.