A scanning light source includes a light source, and scans the output light of the light source ahead of a lamp. A control apparatus controls the lighting on/off state of the semiconductor light source in synchronization with the scanning operation of the scanning light source. The control apparatus judges the presence or absence of an abnormal state with at least one from among (i) a timing immediately before switching from a lighting-on state to a lighting-off state and (ii) a timing immediately before switching from a lighting-off state to a lighting-on state as a judgment timing.

A scanning light source includes a light source, and scans the output light of the light source ahead of a lamp. A control apparatus controls the lighting on/off state of the semiconductor light source in synchronization with the scanning operation of the scanning light source. The control apparatus judges the presence or absence of an abnormal state with at least one from among (i) a timing immediately before switching from a lighting-on state to a lighting-off state and (ii) a timing immediately before switching from a lighting-off state to a lighting-on state as a judgment timing.

An elongated lighting module having an asymmetric illumination source formed from at least two rows of light emitting diodes (LEDs) that extend along the long axis of the module and are independently controllable. The illumination source is rectangular and oriented so that the rows of LEDs extend along the long axis of the module. The module has couplings at each end that allow additional modules to be interconnected therewith using a linking member and a clamp. The lighting modules are powered via a wiring harness that extends down a support pole to a power converter stack having LED drivers to control the modules.

An elongated lighting module having an asymmetric illumination source formed from at least two rows of light emitting diodes (LEDs) that extend along the long axis of the module and are independently controllable. The illumination source is rectangular and oriented so that the rows of LEDs extend along the long axis of the module. The module has couplings at each end that allow additional modules to be interconnected therewith using a linking member and a clamp. The lighting modules are powered via a wiring harness that extends down a support pole to a power converter stack having LED drivers to control the modules.

To detect a malfunction of a light-emission driving unit that drives a light emitting element in a light-emission driving device. A malfunction detection device is provided to the light-emission driving device including the light-emission driving unit that supplies a light-emission current for causing the light emitting element to emit light during a light-emission period during which the light emitting element is caused to emit light. The malfunction detection device provided to this light-emission driving device detects, on the basis of a voltage of an output terminal, a malfunction of the light-emission driving unit, the output terminal being a terminal in the light-emission driving unit that supplies the light-emission current for causing the light emitting element to emit light during the light-emission period, the terminal supplying the light-emission current.

To detect a malfunction of a light-emission driving unit that drives a light emitting element in a light-emission driving device. A malfunction detection device is provided to the light-emission driving device including the light-emission driving unit that supplies a light-emission current for causing the light emitting element to emit light during a light-emission period during which the light emitting element is caused to emit light. The malfunction detection device provided to this light-emission driving device detects, on the basis of a voltage of an output terminal, a malfunction of the light-emission driving unit, the output terminal being a terminal in the light-emission driving unit that supplies the light-emission current for causing the light emitting element to emit light during the light-emission period, the terminal supplying the light-emission current.

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.

An emergency lighting system provides testing and reporting functionality in a rapidly repeatable fashion for environments with numerous emergency lighting units. In one or more embodiments, the emergency lighting system comprises a plurality of emergency lighting units capable of conducting one or more tests and reporting their operating condition as test results. One or more terminals receive and aggregate the test results and present the same to a user. Emergency lighting units having an undesirable operating condition can then be readily identified and addressed.

An emergency lighting system provides testing and reporting functionality in a rapidly repeatable fashion for environments with numerous emergency lighting units. In one or more embodiments, the emergency lighting system comprises a plurality of emergency lighting units capable of conducting one or more tests and reporting their operating condition as test results. One or more terminals receive and aggregate the test results and present the same to a user. Emergency lighting units having an undesirable operating condition can then be readily identified and addressed.