Abstract: A concealed emergency lighting system that includes a lamp assembly box and a power source box and a method for installing the emergency lighting system is disclosed. The lamp assembly box has a face plate and a front door pivotably moveable between an open and a closed position and a lamp assembly. The power source box includes a battery and other electrical components that are connected to the lamp assembly. The emergency lighting system can also include a mounting bracket with screws, a flexible support and a flexible armored cable. The method of installing the concealed emergency lighting system includes the steps of: forming an opening in a wall; attaching the mounting bracket to a stud through the opening; connecting the power source; inserting the power source box and the lamp assembly box through the opening; and securing the lamp assembly box to the mounting bracket.

Abstract: Embodiments of this invention provide a secondary, or back-up, lighting system for light fixtures having a primary light source. The back-up lighting system is configured to mount onto a support structure of the light fixture. The back-up lighting system includes a light source and a lens with optical properties. A housing retains the light source and lens. The back-up lighting system may include a controller that monitors the main power source for the primary light source of the light fixture. The controller activates the light source of the back-up lighting system upon detecting power restoration after a power loss. In some embodiments of this invention, the back-up lighting system includes a secondary power source that powers the back-up lighting system during a loss of power.

Abstract: A solar-infrared-rays sensing garden lamp is provided. It mainly comprises a garden lamp body with a control apparatus set inside. The control apparatus charges a power supply via the solar energy in the daytime, and provides power via the power supply in the nighttime. Therefore a infrared rays sensing circuit set on the garden lamp body at a surface thereof can sense omnibearingly in the nighttime. When the infrared rays sensing circuit senses unusual situation, it drives a corresponding lighting unit to illuminate and transmits a triggered signal to the voice control unit for driving a speaker and giving off sounds.

Abstract: An emergency lighting system comprising a housing further comprising a flat cover, wherein the flat cover automatically opens during an emergency condition; a removable light source located inside the housing further comprising a rechargeable battery and a wide angle LED light bulb, wherein the removable light source remains off under a normal condition and the light source automatically turns on in response to an emergency condition. The emergency lighting system may further comprise a fixed light source for continuous illumination during an emergency condition. Furthermore, the emergency lighting system may further comprise an electrical outlet for use during normal conditions. The emergency lighting system may be retrofitted into existing outlets or the emergency lighting system may further comprise outlet plugs to plug into an existing outlet.

Abstract: An emergency light system that includes a housing that is easily mounted in a conventional power outlet box. The system includes a night light within the housing that is automatically actuated by a low level of ambient light. The automatic activation can be disabled by a manual switch. In the event of a power failure the night light can be automatically illuminated by a rechargeable battery power supply. The housing also serves as a support and source of electricity for a portable, handheld, rechargeable flashlight. The lighting system provides clear system indicators to help maintain the system in an easy to access and easy to maintain operational condition. The housing also includes a pass through AC outlet to act as a source of electricity for an additional electrical appliance.

Abstract: Illumination systems, devices, and methods for cultivating biomasses. A bioreactor system is operable for growing photosynthetic organisms. The bioreactor system includes a bioreactor and an illumination system. The illumination system includes one more optical waveguides configured to light at least some of a plurality of photosynthetic organisms retained in the bioreactor. In some embodiments, the one or more optical waveguides include a plurality of structures configured to direct light energy from a solar energy collector, and a plurality of artificial light sources, along the interior of the waveguide. In some embodiments, the one more optical waveguides include a plurality of light-diffusing structures configured to guide at least a portion of the light from the solar energy collector and a plurality of artificial light sources directed along the interior of the waveguide, to the exterior of the waveguide.

Abstract: Emergency signs and combination emergency signs and emergency lights wherein the combination signs are compact for shipment and are energy efficient using first interior light emitting diodes, powered by an AC power source, for illumination of messages formed in at least one side wall of the emergency signs and having at least one emergency light emitting diode lamp for providing emergency lighting in the event of AC power failure and wherein the at least one emergency light emitting diode lamp, in some embodiments, is selectively deployable and adjustable relative to the signs, and in others, is fixedly mounted relative to the signs.

Abstract: A safety device is incorporated within conventional lighting fixtures, such as table lamps, floor lamps, wall lighting fixtures, ceiling lighting fixtures, chandeliers, recessed lighting fixtures, and decorative lighting fixture structural members such as ceiling medallions. The safety device incorporates several safety function response mechanisms within conventional lighting fixtures to conceal or obfuscate their presence. The safety device provides power failure lighting, alert signals in response to gas, smoke, fire, intrusion, and any other externally generated alarm signal. It may also provide night lighting. The safety device may include a safety module having a light and/or audio source, a power sensing circuit, a control circuit, and a light sensing circuit.

Abstract: An illumination system including a wireless communication unit, a light emitting diode (LED) light source, an image capture unit, and a control platform is provided. The control platform is electrically connected to the wireless communication unit, the LED light source, and the image capture unit. The above-mentioned illumination system integrates the LED light source and other units via the control platform, so as to provide multiple functions, such as illumination, image capture, wireless communication and precaution to natural disaster.

Abstract: An energy-efficient lighting apparatus is disclosed. The lighting apparatus includes a ballast cover. The ballast cover includes a plurality of ballast cover holes. The lighting apparatus also includes a circuit board comprising a plurality of light-emitting diodes. The circuit board is positioned adjacent the ballast cover so that the plurality of light-emitting diodes protrude through the plurality of ballast cover holes in the ballast cover. The lighting apparatus may also include a battery for supplying power to the plurality of light-emitting diodes.

Abstract: A self cooling light effects device for use in a standard light bulb socket having a socket adaptor, surface embedded LEDs as means to generate light effects, means to control light effects, and means for cooling. Fiber optic cables provide further light effects. Means to control light effects may include a logic board. Means for cooling may be any combination of fans, heat sinks, heat pipes, thermoelectric cooling, a heat conductive filler, and a heat conductive housing.

Abstract: A switchable illumination system adapted to provide illumination to a device is disclosed. The switchable illumination system comprises a first light source, a second light source, a reflection module and a control module, wherein the two light sources are disposed on opposite sides of the reflection module, respectively. The reflection module is adapted to reflect the light emitted from either the first light source or the second light source to maintain normal operation of the switchable illumination system under the monitoring of the control unit.

Abstract: Emergency signs and combination emergency signs and emergency lights wherein the combination signs are compact for shipment and are energy efficient using first interior light emitting diodes, powered by an AC power source, for illumination of messages formed in at least one side wall of the emergency signs and having at least one emergency light emitting diode lamp for providing emergency lighting in the event of AC power failure and wherein the at least one emergency light emitting diode lamp, in some embodiments, is selectively deployable and adjustable relative to the signs, and in others, is fixedly mounted relative to the signs.

Abstract: Crime scene lighting devices are used in forensic criminology for illumination and investigation at crime scenes using fluorescence excitation. High radiation powers are required both for white light in the so-called general search and for the criminologically relevant UVA-blue-green range. Moreover, it should be possible for the crime scene investigator to use the forensic lighting device portably and independent from the public power supply. The present disclosure relates to a suitable crime scene light device with a mercury ultra high pressure lamp as the light source, a light guide and terminals for operating the lamp selectively with an accumulator or the public power supply system. A suitable carrier bag, a so-called lorgnette with various longpass filters and a cross-section converter for visualizing shoeprints form useful accessories of the forensic lighting device.

Abstract: An emergency light combined with a faceplate base of a switch and a socket is installed inside the faceplate base and shoots light through a transparent faceplate set at the front of the faceplate base. Thus the emergency light is hidden behind the faceplate base, not needed to be fixed on a wall, with the power wire not exposed out of the switch and the socket. The emergency light includes a case, a lamp plate fixed in the case, a rechargeable battery attached at one side of the lamp plate, a cap closing on the case, a connecting base, plural lamps and plural indicating lamps arranged on the lamp plate, a power connecting base fixed on an outer side of the case.

Abstract: An emergency lighting system comprising a housing further comprising a flat cover, wherein the flat cover automatically opens during an emergency condition; a light source located inside the housing further comprising a rechargeable battery and a wide angle LED light bulb, wherein the light source remains off under a normal condition and the light source automatically turns on in response to an emergency condition, and wherein the light source is removable.

Abstract: An emergency lighting system comprising a housing further comprising a flat cover, wherein the flat cover automatically opens during an emergency condition; a removable light source located inside the housing further comprising a rechargeable battery and a wide angle LED light bulb, wherein the removable light source remains off under a normal condition and the light source automatically turns on in response to an emergency condition. The emergency lighting system may further comprise a fixed light source for continuous illumination during an emergency condition. Furthermore, the emergency lighting system may further comprise an electrical outlet for use during normal conditions.

Abstract: The present invention generally relates to an emergency lighting system which engages when a power outage occurs. The system includes a main unit which operates via AC or DC and is plugged into a wall outlet. When power is lost, the main unit is triggered and sends an RFID signal to at least one lighting fixture. The lighting fixture may be battery operated LED equipped. The battery operated lighting fixture activates the emergency lighting source when the RFID signal is received. The main unit may send the RFID signal to numerous lighting fixtures. The lighting fixtures may receive the RFID signal even if the lighting fixture is not in the direct line of sight of the main unit.

Abstract: This Solar Street Light would be available as an innovative lighting method. They would be positioned approximately 75 feet high a Pole above the streets, and A 50 feet high Pole over the highways. This Solar Street Lights could provide some sense of peace of mind in knowing that there is an effective device available to provide light in areas where there is no light, with less taxpaying dollars. This Solar Street Lights has the potential to become an important ingredient in this recipe of energy usage technology. This Solar Street Light would have Two large Boxes one an each side of the pole far visual seeing, using the largest Battery Pack known plus an electrical Backup. This Solar Street Light would be a great safety device, for Street where animals are and for areas where people walk or ride there bikes or for automobiles that have stopped along the highways. This Solar Street Light will house more light for world safety everywhere.

Abstract: A permanently-installable LED light fixture including a housing including a substantially water-tight chamber, at least one electronic normal-operation LED-driver enclosed within the chamber and receiving power from a general off-location power source during normal operation, an LED assembly secured with respect to the housing, the LED assembly having at least one LED-array module, and at least one backup battery within the chamber capable of providing power during a power outage. In certain preferred embodiments at least one electronic backup LED-driver unit is enclosed within the chamber, the backup LED-driver unit drawing battery power during a power outage.

Abstract: A lamp having a body which defines a hollow chamber and is constructed at least in part from translucent material has one or more night lights directed upwardly and supported therein. The body includes a top crown which is held in place by a lock ring secured upon threads of a coupling device. Access to the upwardly directed night lights is obtained by removing the lock ring and moving the top crown upwardly to provide access to the hollow chamber so that one may insert his or her hand into the hollow chamber to remove and replace the lamp. The top crown is then replaced and the lock ring again secured.

Abstract: A lighting fixture apparatus includes a frame portion, a louver portion and a diffuser lens. The louver portion includes a baffle system for passing unobstructed at least a portion of the light impinging thereon. The diffuser lens includes a surface for diffusing light rays. At least one directional lighting apparatus comprised of LED strips is attached to and supported by the frame portion. The LED strips are disposed between the louver portion and the diffuser portion. The LED assembly includes a rigid strip having a first end and a second end opposite the first end portion, and a first surface and a second surface opposite the second surface. A first rotary support member and a second rotary support member are connected to the strip portion at respective first and second ends. A plurality of electrical lighting elements are mounted on the first surface and are configured in at least one electrical circuit.

Abstract: Housings for emergency unit luminaires with a front portion that includes a printed circuit board and other operational components and a back portion that includes electrical contacts configured to connect to a source of external power. When the front and back portions are engaged, contact pads projecting from the printed circuit board are guided into engagement with the electrical contacts of the back portion for connection to the external power source. The front portion is disengaged from the back portion, and thus disconnected from power, when needed, for example, for maintenance of the unit.

Abstract: A display device includes a lamp having an output light beam, wherein the lamp is disposed in a lamp alignment position when it projects the output light beam A spatial light modulator receives the output light beam and controllably spatially modulates the intensity of the output light beam, and an optics system that projects the spatially modulated output light beam. There is a lamp mount upon which the lamp and at least one spare lamp are supported. The lamp mount selectively and controllably moves one of the lamp and the at least one spare lamp into the lamp alignment position.

Abstract: A vehicular lamp has light source units connected in parallel, an output controlling switch operable to intermittently carry an electric current by repeating on and off, an output coil operable to output electric power according to current flowing into said output controlling switch in synchronization when said output switch switches, a selection controlling unit operable to select at least one said light source unit in synchronization when said output controlling switch switches and cause said at least one selected light source to receive the power output from said output coil, and a malfunction detecting unit operable to detect malfunction of each of said light source units, wherein said selection controlling unit selects at least one said light source unit among said light source units from which malfunction is not detected when said malfunction detecting unit detects malfunction of either of said light source units.

Abstract: An emergency information lighting system (100/200/300), comprising a primary light source (110/210/310) and a housing (112/212/312) for the primary light source (110/210). The housing (112/212/312) includes a first wall (120/220/320) with indicia openings (126/226/326) which correspond to emergency information. The primary light source (110/210/310) emits primary light, which passes through the indica openings (126/226/326) to display the emergency information to a viewing environment. The housing (112/212) or a bulb (316) incorporates a phosphorescent material (132/232/332) which, in the absence of the primary light, emits passive light to display the emergency information to the viewing environment.

Abstract: An emergency light for providing illumination during emergency conditions with a housing, a light source, and a drive arrangement for driving the light source between retracted and extended positions. Flanges, which can be removable, can project from the housing. Fastening arrangements each comprising a mounting bolt in combination with a locking clip can retain the emergency light in relation to a support surface. A motor in combination with a drive screw threadedly engaged with the light source can form the drive arrangement to produce an axial movement of the light source. A limit switch can sense a position of the light source, and a reflector can guide light from the light source. An emergency condition sensor can trigger an extension and illumination of the light source. A battery can power the light during a power failure. Plural lights and a central control unit can form an emergency lighting arrangement.

Abstract: An emergency lighting device adapted to be quickly and easily mounted and installed. In one embodiment, a mounting member of the device is first mounted to a desired structure and connected to an external power supply. Once mounted and completed, and emergency lighting assembly is secured to the mounting member. In certain embodiments, securing the emergency lighting assembly to the mounting member connects the device to the external power supply and energizes the device.

Abstract: In a battery-operated apparatus comprising a load, a battery and a switch in circuit for selectively energizing the load: a comparator compares a potential produced by the battery and a reference potential for de-energizing the load when the battery potential is below a predetermined potential.

Abstract: An elongated flexible lighting system according to the present invention includes an array of light sources that are illuminated by electric power. It further includes an elongated translucent extrusion of flexible material. The array of light sources is integral to the extrusion with said extrusion transmitting and dispersing the light from the array such that the lighting system gives the appearance that the array of light sources is a continuous light source. The elongated lighting system can be used for many different applications including, but not limited to, the lighting of structural features and illumination of sign features.

Abstract: A spotlight system is adaptable for use with preferably one or more power sources so as to provide lighting where needed. The spotlight system preferably includes a spotlight assembly comprising a lamp housing which includes at least one bulb, a switch, and an enclosure. The spotlight system may be operated utilizing DC power with or without a rechargeable battery. The rechargeable battery may be recharged utilizing DC power or AC power while still connected to the lamp housing. When the lamp housing is operated without a battery, then the lamp housing is extremely light for hand held operation with a preferably high power beam.

Abstract: A concealed safety light is described where the light source is integrated and mounted into a switch or power outlet wiring device form factor (20,21,22) to replace conventional electric wiring devices. The light source (10) is controlled by a power and control circuit (90, 790) that derives power from the primary power supply or an alternate power supply. The circuit can detect light levels and turn on the light source when it is dark and also detect power failures to turn on the safety light in the event of a power failure using the alternate power supply The safety light is also capable of responding to an alarm condition from other systems. The resulting safety light is conceyaled in a standard wiring junction box and trimmed with a wall cover plate in the same way as conventional electric wiring devices, allowing it to be concealed while in plain view and provide safety lighting in a variety of ways including power failure, night light and alarm conditions.

Abstract: A high-intensity discharge lamp ballast includes a lamp operation unit configured to supply power from a power source to a high-intensity discharge lamp, a lamp voltage detector configured to detect a voltage applied to the high-intensity discharge lamp, a lamp status determination unit configured to determine whether the high-intensity discharge lamp is in a turned-on state, based on the voltage detected by the lamp voltage detector, an auxiliary lamp switching element configured to connect the power source and an auxiliary lamp having a rated voltage, and a controller configured to control the auxiliary lamp switching element so as to apply to the auxiliary lamp a voltage substantially equal to the rated voltage of the auxiliary lamp when the high-intensity discharge lamp is supplied with the power and the lamp status determination unit determines that the high-intensity discharge lamp is not in the turned-on state.

Abstract: An energy-efficient lighting apparatus is disclosed. The lighting apparatus includes a ballast cover. The ballast cover includes a plurality of ballast cover holes. The lighting apparatus also includes a circuit board comprising a plurality of light-emitting diodes. The circuit board is positioned adjacent the ballast cover so that the plurality of light-emitting diodes protrude through the plurality of ballast cover holes in the ballast cover. The lighting apparatus may also include a battery for supplying power to the plurality of light-emitting diodes.

Abstract: An traffic light capable of utilizing both natural sunlight and artificial light for illuminating selective traffic signals. Natural light is directed to a natural light router or switch and to a color switch for providing a red, amber or yellow, and a green light for each bank of traffic light signals. A controller is coupled to the natural light router and light emitting diodes for controlling the mode of operation for operating the traffic light with either electrically powered light emitting diodes or with natural light collected by the natural light collector. A sensor detects the adequacy of the natural light, and when insufficient, causes the controller to power an LED signal light. The natural light may either be amplitude modulated or time modulated so as to provide a desired high illumination output to the desired signal light. The power consumption is greatly reduced, as well as providing a more reliable traffic light substantially independent of power line interruptions or fluctuations.

Abstract: A recessed lighting fixture that includes a battery assembly integrally connected to a recessed enclosure, such battery assembly including a battery that can supply the lighting fixture with power in the event of a power outage. In one embodiment, the battery assembly includes a ballast plate to which the light source (e.g., incandescent or fluorescent lamps) and the battery are connected. The ballast plate can be connected to the recessed enclosure so that the battery is disposed within an open face defined by the recessed wall enclosure.

Abstract: A solar powered illuminated device is provided with a power module electrically connected to an illuminated module, the power module having a solar cell array electrically connected to a battery array having at least one rechargeable battery, the battery array being electrically connected to the illuminated module. The power module utilizes a power charging mode during generally daylight hours to charge the battery array with energy generated and provided by the solar cell array, and a photo switching device to switch from the power charging mode to a power source mode during generally non-daylight hours to enable the battery array to discharge current to the illuminated module to light up one or more housings in the illuminated module with a light source mounted in each housing.

Abstract: A lighting system contains at least one controllable first light (NL), which is connected to a first current supply (L, N), and at least one controllable emergency current light (SL), which is connected to a further emergency current supply (P, N), separate from the first current supply (L, N). All lights have respective control devices associated therewith, all control devices being connected to a common bus (D1, D2). A monitoring device (5) issues a monitoring signal corresponding to the condition of the first current supply (L, N) onto the bus (D1, D2), which monitoring signal is evaluated at least by the control device of the emergency current light (SL) for the recognition of a disruption and for activation of an emergency current operation.

Abstract: An emergency ballast for a compact fluorescent lamp including a heater disposed adjacent the battery for maintaining the battery at a safe and effective operating temperature during the time which the lamp is powered by the normal AC power supply. Additionally, the ballast includes a charging control circuit which precludes charging of the battery when normal AC power is supplied to the ballast charging circuit during the time when the battery is below a temperature for safe and effective charging. The output of the emergency ballast provides supplemental cathode heating to improve the operating performance of the compact lamp in severely low temperature emergency operation.

Abstract: The present invention includes an emergency lighting device comprising, at least one light emitting diode (LED), a local energy source such as a lithium ion battery, a control circuit in electric communication with the at least one LED and further sensing a main power supply, and a reflector for broadcasting light produced by the LED to designated areas. In particular, the present invention transforms existing fluorescent, incandescent or halogen light fixtures into emergency lighting systems for homes, hospitals, hotels, nursing homes and businesses. The device includes a power sensor for triggering the control circuit to engage the LEDs when electrical service is disrupted, thereby broadcasting a wash of light over an otherwise darkened room or corridor.

Abstract: An emergency lighting function illumination appliance comprised of a fluorescent lamp tube, a controller, a mains power circuit capable of processing mains electric power for lighting, and a backup circuit that provides for a backup power source. With these devices combined, the controller produces the following functions: 1) When mains power is normally supplied, an ON-OFF switch approach controls the fluorescent lamp in accordance with user intent. 2) During a mains power outage, the power circuit is automatically shifted to the backup circuit and the backup power source supplies electricity for emergency lighting. 3) When mains power supply is restored, the power circuit is automatically shifted to the mains power circuit and the mains power resumes the ordinary lighting function.

Abstract: The electric candle light has an elongated shaft that appears as the stick of a wax candle. A light source is disposed at the top end of the elongated shaft. A photoelectric cell is disposed around the top end of the elongated shaft below the light source. A rechargeable battery is coupled to both the light source and the photoelectric cell. The rechargeable battery supplies electricity to the light source and is recharged by the photoelectric cell.

Abstract: Systems, devices and methods for lighting include a lighting fixture having a first electrical system including a first set of electrical components operable by a first power source located remotely from the lighting fixture. A first light-emitting device is mountable to the housing and energizable through the first electrical system during periods of predetermined levels of light. A second electrical system including a second set of electrical components is operable by a second power source located locally with respect to the lighting fixture. A second light-emitting device is mountable to the housing and automatically energized through the second electrical system during predetermined levels of power from the alternating current power source. And, the first set of electrical components are distinct from and independent of the second set of electrical components. Methods of lighting and reducing energy costs through incorporating the lighting device are also disclosed.

Abstract: An emergency lighting fixture combining the functions of an illuminated sign such as an exit sign and an emergency lighting unit integrated into one housing onto which one or more emergency lights can be mounted at predetermined locations of the housing, the combined emergency lighting structure providing both exit location information and ambient emergency lighting in a single cooperatively operating device.

Abstract: Hybrid lighting systems use light distributor tubes to distribute artificial light and natural sunlight through the same distributor tubes. Devices for gathering uncollimated light from conventional sources (such as electrically energized arcs or filaments housed in evacuated or gas filled glass envelopes) and directing the light into the ends of tubes designed to distribute such light. Devices for gathering and concentrating inherently collimated sunlight to be fed into the same light distributing tubes used by the artificial light. One preferred embodiment comprises a light gathering and concentrating system in the form of a pair of opposed parabolic reflectors, one which is preferably large, e.g. having a diameter of five feet, and the other much smaller, e.g. the size of the much smaller distribution tubes. This light gathering system is connected to the light distribution tubes through a pair 90° elbows which are rotatable in the X and Y axis in order to track the location of the sun in the sky.

Abstract: An energy-efficient lighting apparatus is disclosed. The lighting apparatus includes a ballast cover. The ballast cover includes a plurality of ballast cover holes. The lighting apparatus also includes a circuit board comprising a plurality of light-emitting diodes. The circuit board is positioned adjacent the ballast cover so that the plurality of light-emitting diodes protrude through the plurality of ballast cover holes in the ballast cover. The lighting apparatus may also include a battery for supplying power to the plurality of light-emitting diodes.

Abstract: A concealed safety light is described where the light source is integrated and mounted into a switch or power outlet wiring device form factor (20,21,22) to replace conventional electric wiring devices. The light source (10) is controlled by a power and control circuit (90, 790) that derives power from the primary power supply or an alternate power supply. The circuit can detect light levels and turn on the light source when it is dark and also detect power failures to turn on the safety light in the event of a power failure using the alternate power supply The safety light is also capable of responding to an alarm condition from other systems. The resulting safety light is conceyaled in a standard wiring junction box and trimmed with a wall cover plate in the same way as conventional electric wiring devices, allowing it to be concealed while in plain view and provide safety lighting in a variety of ways including power failure, night light and alarm conditions.

Abstract: A distributed emergency building lighting system senses the presence or absence of AC power at the input of a switch controlling lighting in a designated area or an input stimulus such as an alarm to provide low-level marking for visual delineation of the path of egress or lighting of a predetermined designated area by illuminating an EL panel in accordance with code requirements. Self-diagnostic testing verifies operational conditions of the battery and illumination circuit to ensure code compliance.

Abstract: A vehicle light apparatus 1 includes a discharge lamp 7 as a dipped (low)-beam light source and a high-beam light source or a light source of an auxiliary light (incandescent lamp) 3 as a substitutional light source of the discharge lamp. If the apparatus detects an input voltage from a power supply becoming equal to or greater than a threshold value in a state that only the discharge lamp is lit, the incandescent lamp is automatically lit on. To use the high-beam light source in place of the discharge lamp, light extinction lighting is performed or the light application direction is directed downward from the horizontal direction.

Abstract: An emergency ballast for a fluorescent lamp including a heater disposed adjacent the battery for maintaining the battery at a safe and effective operating temperature during the time which the lamp is powered by the normal AC power supply. Additionally, the ballast includes a charging control circuit which precludes charging of the battery when normal AC power is supplied to the ballast charging circuit during the time when the battery is below a temperature for safe and effective charging.