Abstract: An embodiment of a system is disclosed, including an inductor, a voltage regulating circuit, a load, and a current detecting circuit. The inductor includes a first wire, a second wire, and a third wire. The third wire is between, and may be inductively coupled to, the first wire and the second wire. The voltage regulating circuit is coupled to a first end of the first wire and a first end of the second wire. The voltage regulating circuit is configured to generate a first current through the first wire and a second current through the second wire. The load is coupled to a second end of the first wire and a second end of the second wire. The current detecting circuit, coupled to ends of the third wire, is configured to generate an output signal based on a third current through the third wire.

Abstract: A method of assembling an inverter structure (1) includes: winding a coil set (12) around a bobbin (11), the bobbin (11) including a first side (11a) and a second side (11b) opposite to each other; inserting a first core pillar (21) of a first iron core (20) into a through hole (110) of the bobbin (11); sequentially placing a first insulation body (30), a middle iron core (40) and a second insulation body (50) into the through hole (110) from a second side (11b) of the bobbin (11); and inserting a second core pillar (61) of a second iron core (60) into the through hole (110) from the second side (11b) of the bobbin (11) and arranging the second core pillar (61) to be in contact with the second insulation body (50).

Abstract: An ignition plug includes a ceramic insulator having an axial bore, a metallic shell, and a terminal electrode. The terminal electrode has a leg portion inserted into a rear side of the axial bore, and a head portion formed on a rear side of the leg portion and having an outside diameter greater than that of the leg portion. The insulator includes a rear trunk portion exposed from the rear end of the metallic shell, which has a maximum outside diameter of 9.5 mm or less. The insulator has an end-surface seat portion located forward of its rear end and being in contact with the forward end surface of the head portion, and an outer circumferential portion into which at least a forward end portion of the head portion is inserted and which is located externally of the outer circumference of the head portion.

Abstract: A sparkplug including an induction coil and an electrode. The induction coil includes two end portions, the electrode extending in a continuation of one of the two end portions. The induction coil includes a conducting wire wound to form a succession of turns, the one of the two end portions having a terminal turn connected to the electrode. The one of the two end portions includes a plurality of coaxial end turns that extend between the terminal turn and an upstream turn, and the terminal turn has a diameter smaller than the diameter of the upstream turn so to reduce strength of the electric field induced in the one of said two end portions near the terminal turn.

Abstract: In various embodiments, a lamp base element for holding a transformer is provided. The lamp base element may include a transformer chamber which holds the transformer, wherein the transformer is held completely in the transformer chamber, and wherein the contact pins of the transformer are passed through a contact-making face of the transformer chamber, which contact-making face is opposite an opening face.

Abstract: A backlight unit of an embodiment includes: a light emitting module including a plurality of light emitting diodes and a module substrate on which the light emitting diodes are mounted; a bottom cover accommodating the light emitting module; a board on the bottom cover; a transformer mounted on a lower portion of the board, and including a core and a coil surrounding at least one portion of the core; a transformer cover covering the transformer; and a heat dissipating cover between the transformer cover and the bottom cover.

Abstract: An ignition transformer (80) for generating an ignition voltage for a high-pressure gas discharge lamp (5) which has a high-pressure gas discharge lamp burner (50), comprising a ferrite core (81) and at least one primary winding (86) and at least one secondary winding (87), the at least one secondary winding (87) being formed from an insulated metal strip that is disposed on the ferrite core (81) in such a way that the end of the at least one secondary winding (87) that carries the high-voltage is disposed on the inside, wherein the ferrite core has the form of a film reel, and the secondary winding (87) is wound onto the ferrite core like a film.

Abstract: An LED lamp includes an optical part, a heat dissipation member and an electric part. The optical part includes a hollow light penetrable tube and an LED module received in the tube. The heat dissipation member is received in the tube to mount the LED module thereon. The electric part include a circuit board and a rechargeable battery arranged in the tube, and two end covers arranged at two opposite ends of the tube. The LED module is provided with at least one first LED and at least one second LED. The at least one first LED and the at least one second LED cooperatively function as a main light source to provide normal illumination when an external AC power source is supplied normally. The at least one second LED independently function as an auxiliary light source to provide emergency illumination when the external AC power source is interrupted.

Abstract: A light bar system for a vehicle compartment includes a circuit board having a plurality of capacitive-type, user-activated switches, an electrical power source coupled to the circuit board, a light emitting diode (LED) coupled to the circuit board, and a light bar affixed to the circuit board. The user-activated switches are coupled to a vehicle accessory to control the level of operation of the vehicle accessory. The most recently actuated one of the user-actuated switches is detected by the circuit board and the circuit board provides a pulse width modulated (PWM) signal to the LED with a duty cycle of the PWM signal based on the most recently actuated switch. A higher duty cycle PWM signal corresponds to a higher setting of the accessory.

Abstract: A combination light and sound producing fixture and combination screw-in light with speakers element is disclosed where the fixture is installed in a wall or ceiling or on a wall or ceiling. The light bulb/speaker can be screwed or secured into a standard light bulb socket. The sound producing elements is a coaxial arrangement of speakers having a low frequency transducer and one or more high frequency transducers that can be directed to emit sound in a particular direction. The fixture or bulb may further include digital signal processing to modify the sound to account for obstructions in or near the fixture. The surface of the sound transducer can be reflective in nature to provide focusing or diffusion of the light from the lighting elements. The lighting elements are incandescent, fluorescent or low voltage LED type that may include adjustment for lighting intensity and color.

Abstract: One embodiment of a compact fluorescent lamp includes a circuit assembly comprising a rectifier, a plurality of capacitors, a plurality of ICs, a plurality of inductors, a transformer for converting AC to DC, a plurality of diodes, and a PCB; a CFL electrically connected to the circuit assembly; a shade for enclosing the CFL; and a housing for mounting the circuit assembly therein. The circuit assembly is operable when voltage variation is between 2.5 and 21 V. Further, the lamp can operate in one of three different power sources (e.g., DC power supply, electronic transformer, and electrical transformer).

Abstract: A power converter and power conversion method converts an input AC signal to a voltage usable by a load while reducing power consumption, thereby making the converter and method suitable for a wider range of applications. A rectifier receives the AC input signal and outputs a rectified voltage Vs, a controller has a power input connected to Vs and outputs two out-of-phase signals, two transistors are connected in series between Vs and a ground and each of the two transistors has a gate connected to a respective one of the two out-of-phase signals, and a transformer that has a primary coil connected to a node between the two transistors and a secondary coil connected to a load feeds back current from the secondary coil to the power input of the controller to reduce power consumption.

Abstract: The invention relates to a lamp system comprising a low-pressure mercury vapor discharge lamp having a discharge vessel (6) enclosing a discharge space (8), with two electrodes (10, 30) positioned in the discharge vessel and an amalgam (18) arranged at a first end section (28) outside the discharge path between the first electrode and the second electrode. A ballast generates an electrical discharge current independently of an electrical heating current. A heating element (22) is positioned in the first end section for heating the amalgam using the electrical heating current. The temperature of the amalgam can be kept within its optimal temperature range for a relatively broad range of operating conditions.

Abstract: A PAR38 light source assembly for use with a fixture having PAR38 socket connected to a ballast circuit for generating a ballast voltage. An electrically insulating housing supports a PAR38 screw base and encloses a CMH lamp and a circuit board providing a high voltage to ignite or re-ignite the lamp. The housing supports a reflector a lens wherein the lens, the reflector and the housing form an electrically insulating enclosure so that the PAR38 screw base is the only electrically conductive portion.

Abstract: A lighting system for illuminating a chamber in a building includes a lighting fixture suitable for being mounted onto a surface of the chamber, so that light emitted by at least one CCFL device mechanically supported by the fixture illuminates the chamber. The one CCFL device includes at least one transformer. A driver adapted to be connected to a surface of the chamber is capable of converting input power from a power source to an AC power having a voltage in the range of about 5-400 volts and a current at a frequency in the range of about 1kc-100 kc. The at least one transformer is suitable for converting the AC power to an output power suitable for operating the at least one CCFL, causing the at least one CCFL to emit light.

Abstract: In various embodiments, a lamp base element for holding a transformer is provided. The lamp base element may include a transformer chamber which holds the transformer, wherein the transformer is held completely in the transformer chamber, and wherein the contact pins of the transformer are passed through a contact-making face of the transformer chamber, which contact-making face is opposite an opening face.

Abstract: There is provided a high-voltage pulse generator with a reduced radius of rotation and improved performance, and a lighting apparatus and a vehicle having the high-voltage pulse generator. The high-voltage pulse generator includes a pulse transformer in which a primary winding and a secondary winding are wound on a core, a discharge lamp connector which is formed in a tube shape having an opened front surface and a bottom out of an insulating material and which has an inner-electrode terminal electrically connected to a high voltage part of the secondary winding in the bottom, and a pulse generating capacitor and a discharge switch electrically connected to the primary winding of the pulse transformer. The discharge lamp connector is disposed so that the center thereof is located in a center line passing through a substantial center in an axis direction (a direction parallel to a center line) of the pulse transformer and perpendicular to the axis direction.

Abstract: In an electrodeless lamp, at least one core assembly is coupled to a tubular lamp envelope. The core assembly includes a lamp envelope protector disposed over an outer surface of the lamp envelope, and a core member surrounding the lamp envelope at a core mounting location such that lamp envelope protector is disposed between the core member and the lamp envelope. The core assembly further includes a coil bobbin coupled to the core member, and a coil wounded around the coil bobbin.

Abstract: Disclosed are a lamp igniter module and method of assembling a lamp igniter module. The lamp igniter module comprises a transformer carrier, a slide-in electrical connector, a pc board, and a housing. Assembly of the lamp igniter module is accomplished by initially inserting a transformer carrier assembly within the housing and subsequently installing a slide-in electrical connector which may or may not be attached to the pc board.

Abstract: The invention relates to a base for a high-pressure discharge lamp comprising a transformer (300) that is disposed in a chamber (214) of the base (2). Sealing compound (6) is arranged in the interstice between the transformer (300) and the walls of said chamber (214). The terminal (301) of the secondary winding of the transformer (300), which is designed for high voltages, is embedded in the sealing compound (6). According to the invention, only some of the interstice is filled with the sealing compound (6).

Abstract: A PAR38 light source assembly for use with a fixture having socket connected to a ballast circuit for generating a ballast voltage. An electrically insulating housing supports a PAR38 screw base and encloses a CMH lamp and a circuit board providing a high voltage to ignite or re-ignite the lamp. The housing supports a reflector a lens wherein the lens, the reflector and the housing form an electrically insulating enclosure so that the PAR38 screw base is the only electrically conductive portion.

Abstract: A high-voltage generating transformer for a discharge lamp lighting apparatus according to the present invention includes a rodlike core; a secondary winding bobbin that is divided into a plurality of sections, and where the core is disposed in the central portion thereof; a secondary winding part wound on the secondary winding bobbin, divided between the plurality of sections of the bobbin; a primary winding bobbin disposed around the outer periphery of the secondary winding part; and a primary winding part wound on the primary winding bobbin; wherein the primary winding bobbin is changed in thickness every section or every plurality of sections of the second winding part such that the bobbin has a thickened thickness on the side where the potential difference between the primary winding part and the secondary winding part is high, and the bobbin has a thinned thickness on the side where the potential difference is low.

Abstract: A discharge lamp lighting apparatus includes a transformer unit, a casing for housing the transformer unit, and a circuit board including circuit components. In the casing, the circuit board is joined to the casing and the transformer unit is fixed to the circuit board through a heat conductive member having thermal conductivity of more than 0.1 W/(m·k). Heat produced by the transformer unit is transferred to the casing through the heat conductive member and released through the casing effectively. In the lighting apparatus, therefore, while the transformer unit is arranged relatively close to the circuit components, the heat can be prevented from affecting the circuit components.

Abstract: The invention relates to an assembly of a capped high-pressure discharge lamp (1) and a lamp holder (50). The discharge lamp comprises an outer envelope (10) in which a discharge vessel (11) is arranged. The outer envelope has a pinched portion (20) provided with a clamping member (25). A lamp cap comprises a substantially circular-cylindrical cup shaped portion for receiving the clamping member and is provided with a protruding collar (36). The lamp holder (50) comprises a substantially circular-cylindrical flange (55) for receiving the cup-shaped portion such that the flange engages the protruding collar. An inner diameter of the flange (55) has a tolerance of less than or equal to ?0.2 mm. An outer diameter of the cup-shaped portion (33) has a tolerance of less than or equal to +0.2 mm. The respective tolerances extend over a length of at least 2.5 mm, measured with respect to the protruding collar.

Abstract: To provide a transformer in which costs of a backlight device are reduced by lighting a lamp without requiring an additional member for connecting the lamp to an inverter. A transformer according to the present invention includes terminal bases and in which terminal pins are implanted, a bobbin formed by winding a primary winding and secondary windings and around the outer circumference of a winding core, and a core. A lamp connecting terminal is arranged to the terminal bases and, and an electrode of a lamp is directly connected to the lamp connecting terminal, thereby attaching the lamp to the terminal bases and. The transformer is integrated into an inverter for a backlight device of a liquid crystal display apparatus, thereby lighting the lamp without using an additional member for connecting the lamp to the inverter.

Abstract: A LED lighting arrangement includes a support body having mounted thereon one or more LED lighting sources and a driver or feeding the LED lighting sources. The support body includes a high-voltage section carrying the driver and a low-voltage section carrying, mounted on a heat sink, the light sources. An insulation barrier is provided between the high voltage section and the low-voltage section of the board with a twisted pair forming a wiring that traverses the insulation barrier to connect the driver and the LED lighting sources.

Abstract: A high-voltage generating transformer for a discharge lamp lighting apparatus according to the present invention includes a rodlike core; a secondary winding bobbin that is divided into a plurality of sections, and where the core is disposed in the central portion thereof; a secondary winding part wound on the secondary winding bobbin, divided between the plurality of sections of the bobbin; a primary winding bobbin disposed around the outer periphery of the secondary winding part; and a primary winding part wound on the primary winding bobbin; wherein the primary winding bobbin is changed in thickness every section or every plurality of sections of the second winding part such that the bobbin has a thickened thickness on the side where the potential difference between the primary winding part and the secondary winding part is high, and the bobbin has a thinned thickness on the side where the potential difference is low.

Abstract: A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circuit to resonance. The capacitor is preferably selected to have a reactance that is substantially equal to or slightly less than the reactance of the secondary and the impedance of the lamp. In a second aspect, the lamp assembly includes a sealed transparent sleeve that entirely encloses the lamp circuit so that the transparent sleeve is fully closed and unpenetrated. The transparent sleeve is preferably the lamp sleeve itself, with the secondary, capacitor and any desired starter mechanism disposed within its interior.

Abstract: An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.

Abstract: A through hole that is slightly larger than a size of a rear end of a transformer container is formed in a rear cover constituting a part of an external wall of a starting circuit unit. The transformer container houses therein a transformer and constitutes a transformer portion. The transformer portion is assembled such that a rear end of the transformer container projects from the through hole. This allows the transformer container to constitute a part of the external wall of the starting circuit unit.

Abstract: A halogen lamp includes a mains base and a converter operably connected to the mains base. The converter has a lamp socket, a toroid transformer, and a heat sink disposed within a center opening of the toroid transformer. A lamp is removably disposed in the lamp socket. The converter has a power density between 0.75 and 3.75 Watts/cm3. In an alternate embodiment, the halogen lamp includes a low voltage, low pressure IRC lamp operably connected to the converter.

Abstract: An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.

Abstract: An electric circuit for igniting a discharge lamp includes a voltage source, and at least one condenser electrically connected to the voltage source. Further, a series chain is provided, electrically connected in parallel with the condenser, of at least one ignition and at least one inductor. A discharge lamp is electrically connected in parallel with the ignition.

Abstract: An apparatus and methods for balancing current in multiple negative impedance gas discharge lamp loads. Embodiments advantageously include balancing transformer configurations that are relatively cost-effective, reliable, efficient, and good performing. Embodiments include configurations that are applicable to any number of gas discharge tubes, such as cold cathode fluorescent lamps. The balancing transformer configuration techniques permit a relatively small number of power inverters, such as one power inverter, to power multiple lamps in parallel. One embodiment of a balancing transformer includes a safety winding which can be used to protect the balancing transformer in the event of a lamp failure and can be used to provide an indication of a failed lamp.

Abstract: The discharge lamp lighting apparatus includes a power section operating to generate a high voltage to be applied to a discharge lamp to trigger electrical discharge within the discharge lamp and to generate an AC voltage to be supplied to the discharge lamp to keep the discharge lamp in a stable lighting state, and a control section controlling operation of the power section. The power section and the control section are installed separately within an enclosure of the discharge lamp lighting apparatus.

Abstract: An embodiment of a discharge lamp lighting apparatus of the present invention includes a socket inserted with a discharge bulb, a transformer having a coil including a secondary side winding connected at one end to the socket, connected at the other end to a first drive wire, and a primary side winding connected at one end to a second drive wire, connected at the other end to a third drive wire through a discharge gap, a core inserted into the coil, and a resin filled between the core and the primary side winding, the secondary side winding, and a capacitor connected between the second drive wire and the third drive wire, wherein the transformer and the socket are aligned side by side.

Abstract: An apparatus and methods for balancing current in multiple negative impedance gas discharge lamp loads. Embodiments advantageously include balancing transformer configurations that are relatively cost-effective, reliable, efficient, and good performing. Embodiments include configurations that are applicable to any number of gas discharge tubes, such as cold cathode fluorescent lamps. The balancing transformer configuration techniques permit a relatively small number of power inverters, such as one power inverter, to power multiple lamps in parallel. One embodiment of a balancing transformer includes a safety winding which can be used to protect the balancing transformer in the event of a lamp failure and can be used to provide an indication of a failed lamp.

Abstract: A transformer for being fitted in a lamp base and to a lamp base having a transformer arranged in it, the transformer housing being provided with guide elements which serve the purpose of inserting the transformer in the correct position in the lamp base. The transformer is preferably in the form of a starting transformer of a pulse starting apparatus integrated in the lamp base of a high-pressure discharge lamp.

Abstract: An apparatus for providing convenient transforming of electrical energy from a first voltage level to a second voltage level, includes a housing having an end wherein the end includes a conductive threading and a contact for making an electrical connection with a light bulb socket. The apparatus also includes a transformer electrically connected to the electrical connection for receiving power through the light bulb socket and transforming the received electrical energy from the first voltage level to the second voltage level. There is a connection electrically connected to outputs of the transformer to provide power at the second voltage level. The converted power can be used to power a DC-driven device such as an LED.

Abstract: EL light emitting device includes a cylindrical EL light emitting unit and a columnar power feeding unit. EL light emitting unit is composed such that a cylindrical receiver coil is arranged and connected along an inner circumferential face of the cylindrical EL light emitting element and integrated into a single body by an outer cover member. The power feeding unit is formed in a columnar shape whose diameter is smaller than an inner diameter of EL light emitting unit so that the power feeding unit can be inserted into the cylindrical EL light emitting unit. When the power feeding unit is inserted into EL light emitting unit and the power feeding unit is impressed with an alternating voltage, a high alternating voltage corresponding to the turn rate of both coils is generated in the receiver coil, so that light can be emitted from EL light emitting element.

Abstract: An apparatus and methods for balancing current in multiple negative impedance gas discharge lamp loads. Embodiments advantageously include balancing transformer configurations that are relatively cost-effective, reliable, and efficient. Embodiments include configurations that are applicable to an unrestrained number of gas discharge tubes, such as cold cathode fluorescent lamps. The balancing transformer configuration techniques permit a relatively small number of power inverters, such as one power inverter, to power multiple paralleled lamps or paralleled groups of lamps with balancing transformers coupling the lamps or groups of lamps in a zigzag topology. One embodiment of a balancing transformer includes a safety winding which can be used to protect the balancing transformer in the event of a lamp failure and can be used to provide an indication of a failed lamp.

Abstract: A description is given of a gas-discharge lamp base (11) with a housing comprising an upper part (10) and a cover (40), a support (16) accommodated in the housing for receiving the components, with a transformer, with inductances connected in series with the lamp (1) and a capacitance connected in parallel with the lamp (1), the transformer comprising a bar transformer (23). This construction permits particularly efficient production, because the support can be constructed as a simple leadframe which permits automatic component fitting.

Abstract: A fluorescent-lamp driving apparatus and a compact self-ballasted fluorescent lamp, when a blowout occurs at the electrodes of the arc tube, swiftly and assuredly stop a glow discharge at the electrodes of the arc tube, therefore have heightened security. In the compact self-ballasted fluorescent lamp 1, a switching device (nMOS-FET56) is mounted to the lighting unit 50 so that the entire device main body of the switching device faces the choke coil 52, with the print substrate 51 therebetween. Thus structured lighting unit 50 forms a heat transmission path between the nMOS-FET56 and the choke coil 52, and the heat generated at the choke coil 52 will be swiftly and assuredly transmitted to the device main body of the nMOS-FET56.

Abstract: A high-voltage discharge lamp lighting apparatus has a stabilizer which supplies a power voltage used for maintaining the lighting operation to a high-voltage discharge lamp, and an ignitor circuit having an oscillating circuit-for-driving in which a start pulse generates upon starting the lighting operation of the high-voltage discharge lamp, and high-voltage pulse generating transformers which increase a voltage of the start pulse. Further, the high-voltage discharge lamp lighting apparatus includes a cap portion to which the high-voltage discharge lamp is attached and held, including a part of the high-voltage pulse generating transformers of the ignitor circuit, and a socket portion to which the cap portion is attached and is fit, including at least the oscillating circuit-for-driving in the ignitor circuit and a portion of the high-voltage pulse generating transformers except for a part included in the cap portion.

Abstract: A lamp assembly configured to inductively receive power from a primary coil. The inductively powered lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circuit to resonance. The capacitor is preferably selected to have a reactance that is substantially equal to or slightly less than the reactance of the secondary and the impedance of the lamp. In a second aspect, the inductively powered lamp assembly includes a sealed transparent sleeve that entirely encloses the lamp circuit so that the transparent sleeve is fully closed and unpenetrated. The transparent sleeve is preferably the lamp sleeve itself, with the secondary, capacitor and any desired starter mechanism disposed within its interior.

Abstract: A landscape light fixture to illuminate aesthetically desirable lighting. The landscape light fixture includes a ballast housing, a shroud, a light bulb, a lens, and a power cord with a connector. The landscape light fixture may also include a neck, a pivot, at least one mounting element, and at least one spacer.

Abstract: A low voltage lamp is disclosed and claimed. The low voltage lamp includes a low voltage lamp switch having a first pole permanently connected to a remote source of electric power; a second pole permanently connected to a light; and a movable switch element permanently connected to the first pole and selectively movable into and out of electrical connection with the second pole. In the illustrated embodiment of the invention, the movable switch element includes a flexible cable having a first end connected to the first pole, and an electrically conductive ball mounted to the cable free end. The second pole here comprises a cup adapted to receive and electrically connect to a ball, and the second pole cup is electrically connected to a light.

Abstract: A transformer. The transformer drives a plurality of lighting tubes and comprises a coupling iron core, a first winding around the coupling iron core, a first bobbin disposed between the first winding and the coupling iron core, a plurality of second windings, independent of each other and respectively winding around the exterior of the first winding, wherein the second windings have the same winding number, and a second bobbin disposed between the first winding and one second winding.

Abstract: An electric gas lighting device including an ignition circuit for generating sparks at at least one burner and connected to a supply line, supplying a supply voltage, via enabling means for alternatively enabling/disabling spark generation when connected/disconnected to/from a reference potential line; the enabling means are defined by a secondary winding of an isolation transformer interposed between the supply line and the ignition circuit; a first terminal of the secondary winding of the isolation transformer is connected to a first terminal of hand-operated switch means, a second terminal of which is connected to the reference potential line; and the ignition circuit also includes a discharge generating circuit, a first node of which is connected to the reference potential line, and a second node of which is connected to a second terminal of the secondary winding of the isolation transformer.

Abstract: A support device is provided for use with an electric lamp having a sealed outer envelope that encloses an environment, and a lamp capsule and end-of-life device positioned within such environment. The support device serves to support the lamp capsule and the end-of-life device within the outer envelope. The end-of-life device is electrically connected in series with the lamp circuit through the support device.