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 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.

The subject disclosure relates to solutions for testing lighting systems and in particular, for verifying lighting system operability in the event of a power failure. A process of the disclosed technology can include steps for receiving an interrupt command, toggling an interrupt relay in response to the interrupt command, and measuring one or more lighting characteristics of the lighting array to determine if the second power supply can power the lighting array. Systems and machine-readable media are also provided.

The subject disclosure relates to solutions for testing lighting systems and in particular, for verifying lighting system operability in the event of a power failure. A process of the disclosed technology can include steps for receiving an interrupt command, toggling an interrupt relay in response to the interrupt command, and measuring one or more lighting characteristics of the lighting array to determine if the second power supply can power the lighting array. Systems and machine-readable media are also provided.

The present disclosure provides an LED straight light including a light tube with two pins at both ends, an LED installed in the light tube and a driving circuit. The driving circuit includes a mains branch and a signal branch. The mains branch is coupled to the pins at one end of the light tube for transmitting power to the LED for power supply. The signal branch is coupled to the pins at the other end of the light tube for transmitting external driving signals to control the on/off of the mains branch. The LED straight light of the present disclosure is powered by two ends, one of the two ends supplies power to the LED through the mains branch, and the other end receives driving signals to control the on/off of the mains branch.

The present disclosure provides an LED straight light including a light tube with two pins at both ends, an LED installed in the light tube and a driving circuit. The driving circuit includes a mains branch and a signal branch. The mains branch is coupled to the pins at one end of the light tube for transmitting power to the LED for power supply. The signal branch is coupled to the pins at the other end of the light tube for transmitting external driving signals to control the on/off of the mains branch. The LED straight light of the present disclosure is powered by two ends, one of the two ends supplies power to the LED through the mains branch, and the other end receives driving signals to control the on/off of the mains branch.

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.

An emergency detection and notification system provides autonomous mapping of locations of a building or other environment through a plurality of emergency notification units. The emergency notification units utilize wireless signals to generate topology information that identifies the location of the emergency notification units, the outermost emergency notification units of which identify the egress locations of a building. Upon detection of a hazard, the emergency detection and notification system determines the location of one or more hazards using the topology information.

An emergency detection and notification system provides autonomous mapping of locations of a building or other environment through a plurality of emergency notification units. The emergency notification units utilize wireless signals to generate topology information that identifies the location of the emergency notification units, the outermost emergency notification units of which identify the egress locations of a building. Upon detection of a hazard, the emergency detection and notification system determines the location of one or more hazards using the topology information.

Unsafe restoration of normal lighting is prevented using a reset control communicating with an emergency condition detector and emergency lighting controller in a lighting system. The reset control can be integrated into other system components, like the emergency condition detector, or retrofit into an existing lighting system and configured to work with different types of emergency condition detectors and lighting controllers.