Abstract: A flashlight includes a first or top section attached to a second or base section. The top section has one or more elements that are axially moveable relative to the base section, for focusing light. This movement may be achieved, for example, by having the top and base sections joined via screw threads, and by rotating one section relative to the other. One or more lenses are supported in the top section. An LED or other light source is supported on a base or heat sink on the base section. As the sections move relative to each other, a switch is actuated turning the LED on, and the lens moves relative to the LED, focusing light from the LED. The base section has a housing forming a battery compartment. Electronic components are encapsulated in a potting compound, such as thermally conductive epoxy, to improve heat transfer from the components, and to better resist environmental affects.

Abstract: A flashlight having a lamp, a power storage element, a switch, and an electronic controller. The controller has a switch input connected to the switch and operates in response to the input to deliver power from the power storage element to the lamp. The controller may be directly connected to each of the lamp, source, and switch. The switch may include several separate contact elements operating sequentially in response to movement of a switch actuator. The controller may provide different illumination levels and functions in response to different pressures and durations of actuation. The flashlight may include a dimmer level control to establish an intermediate “dimmed” output level, and operate to provide the selected dimmed output when the switch is depressed by an intermediate amount, and to provide a greater maximum output level in response to full actuation of the switch.

Abstract: Active and spare battery holders are removably disposed within a battery compartment of a battery operated device such that battery cells in the active holder provide electrical power to operate the device, while battery cells in the spare holder are electrically isolated to prevent their discharge. In one embodiment, upon discharge of the battery cells of the active holder the cells of the active holder and the spare holder are exchanged, providing the active holder with fresh cells to operate the device. In another embodiment, the active and spare holders are simply interchanged, so that the spare holder becomes the active holder and the active holder becomes the spare holder. According to the latter embodiment, a unitary battery holder includes a first and second battery holder in a single unit, so that to interchange active and spare holders the unitary battery holder is reversed within the battery compartment.

Abstract: A lighting device (30) having a housing (12) which includes a lamp means, a battery housing to receive at least one battery and a switch means to open and close a circuit between said lamp means and terminals of said at least one battery when located in said housing. Said lighting device includes a lanyard (110, 112) attached to said housing (12) characterised by said lanyard having a proximal end attached to said housing (12) and a distal end, whereby said distal end or a portion of said lanyard (110, 112) is adapted to be releasably attached to said housing (12).

Abstract: A flashlight has a lamp assembly with a number of different output states. The flashlight has an elongated housing defining a housing axis, and a control ring encompasses the housing and rotates on the housing axis. The control ring operates to change the output state in response to rotation of the element. A detent mechanism operably connects the control ring to the housing. The detent mechanism provides a number of different stable positions of the control ring with respect to the housing, and may provide a low profile by employing a thin sheet or wire spring compressing in an axial direction.

Abstract: The present invention provides a lighting device having a battery housing to hold a battery, a light housing having a light source and a lens assembly into which said light source will emit light when activated, said battery and said light source being in circuit with a switch to open and close said circuit, said light housing being moveable relative to said battery housing to motivate said switch to open and/or close said circuit.

Abstract: A flashlight has a lamp assembly with a number of operating states including an off state and a number of different brightness level output states The flashlight has an elongated housing with opposed forward and rear ends. The housing has a body portion extending to the rear end, and a head portion rotatably attached to the body portion and extending to the forward end. The lamp operating state is based on the rotational position of the head portion with respect to the body. The body portion and head portion may be cylindrical elements of a common diameter. The head portion may include an electronic component having a rotatable input that is engaged by an element on the body portion. The flashlight may include a removable end portion opposite the head portion, with a support facility operable to support the housing, such that a user does not need to contact the housing.

Abstract: A flashlight has a cylindrical housing holding a light source. A switch on the housing has an actuating element rotatable about a longitudinal axis of the housing. The housing has a surface directed toward the actuating element and formed with a recess open toward the actuating element. A permanent magnet on the actuating element and directly juxtaposed with the housing surface is engageable in the recess in a predetermined angular position of the actuating element. A spring braced between the permanent magnet and the actuating element biases the permanent magnet toward the housing surface. A contact element inside the housing is operable magnetically by the permanent magnet.

Abstract: A luminous material comprising a rubber, glass or plastics material matrix. A luminescent material is dispersed throughout the matrix, and a colorant dispersed throughout the matrix. The colourant gives the matrix a colour when it is observed under substantially white light, and the colourant allowing substantial transmission of light emitted by the luminous material.

Abstract: A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.

Abstract: A light (10) comprising: a cup-shaped, substantially rigid base (12) having a circumferential ridge (14) on the outer wall (16) of the base (12); a battery (18) having first and second poles (20, 22) within the base (12); a PCB (24) overlying the battery (18) within the base (12), the PCB (24) having a plurality of apertures (26) therein, at least one of the apertures (26) containing a LED (28) having first and second lead-ins (20a, 22a), a first of the lead-ins (20a) being electrically connected to the first pole (20) via a connector (30); switch means (32) associated with the PCB (24) electrically connecting the second lead-in (22a) to the second pole (22); and a cup-shaped, flexible, translucent cover (34) on the base, the wall (36) of the cover (34) engaging the outer wall (16) and the circumferential ridge (14).

Abstract: A pocket light that allows a user to view documents in a dark situation without having to hold a flashlight. The pocket light fits easily over the top of the pocket and can be covered by a conventional pocket flap. The light is an LED display device that produces a significant amount of light so a user can check identification or documentation, as in a license check, or registration verification for police. The pocket light has a push button power switch that can be activated by the user through the fabric of their shirt.

Abstract: A HID searchlight module includes lamp head unit, a ballast unit and a battery unit respectively connected to one another in series by a respective screw joint. The lamp head unit has an end cap at the rear side that has two holes, two metal springs respectively mounted in the holes and respectively electrically connected to the contacts of the PC board in the lamp head unit, two metal conducting pins respectively supported on the metal springs, a front inner annular flange protruded from the front side at the center, a front outer annular flange protruded from the front side at the center and concentrically spaced around the front inner annular flange, and an annular coupling groove defined between the front outer annular flange and the front inner annular flange.

Abstract: A disposable gas lighter with advertising flashlight. The lighter has a flashlight unit having a power source, a lamp electrically connected to the power source, a push-button switch to turn on the lamp when pressed down, a sleeve installed in a recess of the body which contains the lamp in one end thereof, a film bearing advertising information and placed in around a middle portion of the sleeve, and a convex contained in a free end of the sleeve. The convex is located in an opening defined on the surface of the body. When the push-button switch is pressed down, the flashlight unit is able to give off a light beam. When the beam meets a plane in front of the gas lighter, a project of the film comes into being. Viewers then are able to watch the advertising information of the film with the project.

Abstract: A handgrip for bicycle includes a body including a first end, a second end, and a light reflection portion covering thereon between the first and second ends, a sheath mounted on the light reflection portion, a lamp device installed on an end of the sheath adjacent to the second end of the body, and a switch device installed to the body and electrically connected to the lamp device.

Abstract: A flashlight in accordance with the present invention includes a chamber, end cap, head assembly and lamp holder assembly. The end cap includes a bowed tripod portion to facilitate standing the flashlight on a flat surface. The head assembly includes a reflector and a lens. In one embodiment of the invention, the head assembly includes an elliptical reflector. In accordance with another embodiment of the present invention, the flashlight having a elliptical reflector is matched with a negative or planar lens. In accordance with another embodiment of the present invention, the head assembly includes an hyperbolic reflector. In accordance with another embodiment of the present invention, the flashlight having a hyperbolic reflector is matched with a positive or planar lens. In accordance with another aspect of the present invention, the flashlight includes electrode connections which prevent the conduction of electrical energy from batteries which are improperly aligned within the flashlight.

Abstract: A portable lamp comprises a LED-based lighting module, a rotary selector switch for selecting the operating mode, and a power supply battery, the whole assembly being housed in a compact case which is coupled to a fixing plate with multidirectional orientation. The lighting module and the selector switch are arranged side by side on the front face, the fixing plate being joined to the case by a ball and socket joint arranged in a housing provided at the base of the case between the selector switch and the lighting module.

Abstract: A battery cartridge has a casing adapted to releasably hold at least one battery, externally accessible contacts on the casing, and internal circuitry in the casing between the contacts and poles of the battery. A switch is mounted in the casing and connected to the circuitry between one of the poles and the respective contacts for controlling current flow therebetween.

Abstract: The present invention provides a spontaneous electric energy storage hand tweak torch, comprising a lamp cap and a cylindrical casing. The casing comprises a front casing and a rear casing capable of being bi-directionally tweaked about an axis. The lamp cap is fixed on the front casing. The interior of the front casing is provided with an electric generator, an energy storage element, a circuit board and a control switch. The exterior of the front casing is provided with a push button corresponding to the control switch. The output end of the electric generator is connected with the input end of the circuit board via a lead. The output end of the circuit board is connected with the energy storage element. The rotating shaft of the electric generator is connected with the rear casing via a gear set. The present invention has a simple and compact structure as well as a regular and uniform profile. Besides, it is convenient to operate and therefore saves labor.

Abstract: A flashlight has a housing, a battery in the housing, a light source on the housing, and a circuit between the battery and the light source and including a switch actuatable to energize the light source. A package encloses the flashlight and holds an externally actuatable package switch separate from the housing switch and carried on the packaging material and wiring connected between the package switch and the circuit of the flashlight such that the package switch is actuatable to energize the light source. The wiring is releasably connected to the circuit for disconnection of the wiring and package switch from the circuit on separation of the flashlight from the package.

Abstract: A laser indicator is secured on a rotating shaft of a sawing machine, on which rotating shaft a saw is fitted; the laser indicator consists of a base, an upper cover, a laser module, and a threaded adjusting element passed through a screw hole of the upper cover; the laser module is pivoted to the base, and subjected to elastic force of an elastic member; the adjusting element is pressed against the laser module such that orientation of the laser module can be adjusted by means of turning the adjusting element; therefore, if the laser beam emitted from the laser module fails to head towards exactly the same direction as the blade of the saw, the user is allowed to turn the adjusting element to adjust the laser module to a correct position.

Abstract: A retractable, automatic, on/off flashlight system includes a retriever having a retriever spring and a line to be retracted by the retriever spring into the retriever in a retraction direction. A flashlight has a light source, a power source and a switch connected in a circuit. The switch has an actuator connected to the line. The actuator closes the switch and turns on the light source upon pulling the flashlight and the line away from the retriever in an extension direction.

Abstract: A thermally-insulating, glow-in-the-dark, protection shield and grip for a flashlight. The shield encircles the switch so that the switch cannot inadvertently be turned ON to discharge the batteries.

Abstract: A flashlight includes a battery and two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. There are contacts on an intermediate portion of the barrel for contact with a recharging device. There is a spring member between the switching device above the barrel and the top of the battery and a spring member on the base of the barrel at the bottom of the battery. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.

Abstract: A light beam generator including a remote dual switch device preferably including a remote momentary tape switch including a resilient housing and a remote pushbutton actuable CONSTANT ON/OFF switch carried by the resilient housing, the resilient housing configured with resilient members removably securable to a rail of a rail structure which may be secured to a firearm or other gun.

Abstract: A HID searchlight module includes lamp head unit, a ballast unit and a battery unit respectively connected to one another in series by a respective screw joint. The lamp head unit has an end cap at the rear side that has two holes, two metal springs respectively mounted in the holes and respectively electrically connected to the contacts of the PC board in the lamp head unit, two metal conducting pins respectively supported on the metal springs, a front inner annular flange protruded from the front side at the center, a front outer annular flange protruded from the front side at the center and concentrically spaced around the front inner annular flange, and an annular coupling groove defined between the front outer annular flange and the front inner annular flange.

Abstract: A driver head, including a body with a connecting end, a control member, a light emitting element and a power supply element; a control member is pivotally installed in the transversal groove of the body; an electrically conducting plate is contained in the conducting groove of the control member; the outer circumferential surface of a light emitting element is in contact with the body; a plurality of power supply elements are installed in the third groove; a resilient element is installed in the third groove; the control member has a conducting groove, such that the electrically conducting plate can be installed in the conducting groove, and the control member can be turned to drive the electrically conducting plate or the control plane to contact the power supply element, for controlling an electric connection.

Abstract: An energy efficient flashlight system having multiple lighting display modes and a single operating switch that enables a user to step through the modes. The flashlight illuminates via the use of a plurality of light emitting diodes (LEDs) that preferably contain at least two colors, such as red and white, and are designed to coordinate in order to provide the plurality of modes including an emergency signaling mode, a red map reading mode or directional pointing mode and a bright illumination mode. The flashlight enables a user to hold, operate and toggle between modes using a single hand.

Abstract: A handheld flashlight includes a main body with a first and second end which also includes a power source within the main body. A light emitting source is attached to the main body proximate the first end. The main body includes a first switch operably attached to the main body proximate a second end and a second switch operably attached to the main body between the first end and the second end. The handheld flashlight includes circuitry within the main body that contains the first and second switches and connects the power source to the light emitting source through either the first switch or the second switch or both the first and second switches such that either the first or second switch can be manipulated independent of the position of the other switch to provide power to the light emitting source or interrupt power to the light emitting source.

Abstract: A flashlight in accordance with the present invention includes a chamber, end cap, head assembly, and lamp holder assembly. The head assembly includes a reflector and a lens. In accordance with one embodiment of the present invention, the flashlight includes electrode connections that prevent the conduction of electrical energy from one or more batteries which are improperly aligned within the chamber. In another embodiment, the lamp holder assembly includes a lamp socket having a lamp guide and/or a fluorescent coating. In another embodiment, the flashlight comprises a head assembly attached to the chamber which is rotatable relative to the chamber to cause electrical coupling of the lamp and one or more batteries retained by the chamber.

Abstract: The present invention discloses a full color flashlight with high power LEDs. The flashlight is primarily composed of a full color LED module having LED chip set of different wavelengths, a control-circuit module, a function switch, batteries, and a barrel body. By controlling the LED chip set of different wavelengths through the control-circuit module, light beams of various colors can be emitted and uniformly mixed. The flashlight further comprises a function switch for changing the color of light and/or switching operation modes between a fast flash mode, a slow flash mode, a brightness control mode and un-lighting. Accordingly, the full color flashlight can be employed in different environments, for example, yellow or light blue light can be used at night to prevent the eyes from dazzling, and red flash can be as warning signal during traffic events; in conclusion, the present invention can be elaborate in the day-to-day life.

Abstract: A printed circuit board (PCB) has a “U” shape circuit connected to a light emitting diode (LED) by a proximal end, connected to a conducting spring by a distal end. LED mounted inside a conducting shell to emit light toward a light guide tube by magnetic attraction realized by a conducting member having a conducting pole; a refill fits through the light guide tube, and a magnet mounted inside a cap member. One lead of the LED electrically connected to an anode of batteries, the other lead electrically connected to the conducting shell. But the batteries are insulated from the conducting shell; a cathode of the batteries electrically connected to the conducting pole, which is insulated from the conducting shell, as the magnet attracts to the conducting pole and conducting shell by magnetic attraction to conduct an electric current, the LED is lit up for illumination.

Abstract: A flashlight with automatic light intensity adjustment means comprising a flashlight casing, a light source, a switch, a light controlling circuit on a printed circuit board and a power source, wherein a sensor component is attached to the flashlight casing, and the sensor component comprises a sensor casing and an incident light intensity sensor disposed therein, and the sensor is electronically connected to the light source, the switch, the light controlling circuit and the power source, and the light controlling circuit controls electrical current passing through the light source according to intensity of incident light as detected by the sensor so that more current is passed through the light source when a lower intensity of incident light is detected, and less current is passed through the light source when a higher intensity of incident light is detected.

Abstract: A multi-function penlight structure comprises a body provided with a cell, a power button and an illuminative casing, in the outer front periphery of the illuminative casing being mounted a magnetic collar, and at the rear end of the body being formed a grip portion in which an extendable and retractable stem is received, and at the front end of the stem being attached a flexible member for connecting with the body, such that the penlight body can be extended, retracted and bent to any desired angle so as to attract a metal object by using the magnetic collar, and after retracting the stem and the flexible member back to the grip portion, the present invention can be simply used as a penlight, thereby achieving the multi-function purposes thereof.

Abstract: A flashlight has a lamp assembly with a number of operating states including an off state and a number of different brightness level output states The flashlight has an elongated housing with opposed forward and rear ends. The housing has a body portion extending to the rear end, and a head portion rotatably attached to the body portion and extending to the forward end. The lamp operating state is based on the rotational position of the head portion with respect to the body. The body portion and head portion may be cylindrical elements of a common diameter. The head portion may include an electronic component having a rotatable input that is engaged by an element on the body portion. The flashlight may include a removable end portion opposite the head portion, with a support facility operable to support the housing, such that a user does not need to contact the housing.

Abstract: A flashlight includes a first or top section attached to a second or base section. The top section has one or more elements that are axially moveable relative to the base section, for focusing light. This movement may be achieved, for example, by having the top and base sections joined via screw threads, and by rotating one section relative to the other. One or more lenses are supported in the top section. An LED or other light source is supported on the base section. As the sections move relative to each other, the lens moves relative to the LED, focusing light from the LED. The base section has a housing forming a battery compartment for holding at least one battery. Contacts may be provided on the base section for charging the battery, without removing the battery from the flashlight.

Abstract: An illumination source includes a plurality of LEDs, and an electrical circuit that selectively applies power from the DC voltage source to the LED units, wherein the illumination source is suitable for handheld portable operation. In some embodiments, the electrical circuit further includes a control circuit for driving the LEDs with electrical pulses at a frequency high enough that light produced has an appearance to a human user of being continuous rather than pulsed, the control circuit changing a pulse characteristic to adjust a proportion of light output having the first characteristic color spectrum output to that having the second characteristic color spectrum output. Some embodiments provide an illumination source including a housing including one or more LEDs; and a control circuit that selectively applies power from a source of electric power to the LEDs, thus controlling a light output color spectrum of the LEDs.

Abstract: A flashlight includes a battery and two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. There are contacts on an intermediate portion of the barrel for contact with a recharging device. There is a spring member between the switching device above the barrel and the top of the battery and a spring member on the base of the barrel at the bottom of the battery. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.

Abstract: A flashlight (10) including: a housing (12) with a light source (104), a power source (142), and an aperture (126) through the housing (12) that is closed by a resilient cover (112). The resilient cover (112) extends over a switch assembly (18) and provides a waterproof seal for the housing (12). An indicator means (146), when illuminated, is visible through the resilient cover (112). A waterproof flashlight (10) having an electric contact (154) extending through a contact aperture (38) formed in the housing (12) with resilient sealing means (164) between to establish a water tight seal. A securement means (158) to place the resilient means (164) under compression. When not in use, the flashlight (10) may be stowed on a base (40) for recharging through the electrical contact (154).

Abstract: A snapped together portable lamp assembly may be formed with a deformable reflector. Cutouts in the reflector form a resiliently flexible web that enables axially flexing to initiate a spring operated electrical switch. A covering lens may transmit the initiating force to turn the lamp on or off. The structure is compact, easily operated with a single touch and inexpensive to make.

Abstract: The invention concerns a mobile illuminating device comprising a generally cylindrical housing (1) of axis (X-X) including: illuminating elements (7) in the form of light-emitting diodes (LED) fixed on a support plate (6); electrical/electronic control and/or connecting means (9) between said illuminating elements (7) and a power source (9); means for fixing (10) said device. The housing is a single-piece unit, to ensure increased tightness and impact resistance.

Abstract: A personal light including a battery power source connected in series with a light-emitting diode (LED) light source and a switching mechanism configured for non-contact actuation are disposed within an environmentally sealed chamber. A reflector is employed to maximize reflection of light emanating from the LED and a lens having an anti-reflective coating thereon associated with the LED opposite the reflector to enhance the light output and magnify the narrow beam of the LED. The switch employs an actuation mechanism exterior to the chamber to activate and deactivate the light.

Abstract: A portable flashlight alarm clock apparatus includes a clock and flashlight assembly having an elongated housing with a body portion and a sleeve member. The housing includes a flashlight assembly and a clock assembly and the sleeve member is sized to receive the housing and is slidably associated therewith from a closed condition to an open condition in which a time display of the clock assembly is visible.

Abstract: A laser indicator is secured on a rotating shaft of a sawing machine, on which rotating shaft a saw is fitted; the laser indicator consists of a base, an upper cover, a laser module, and a threaded adjusting element passed through a screw hole of the upper cover; the laser module is pivoted to the base, and subjected to elastic force of an elastic member; the adjusting element is pressed against the laser module such that orientation of the laser module can be adjusted by means of turning the adjusting element; therefore, if the laser beam emitted from the laser module fails to head towards exactly the same direction as the blade of the saw, the user is allowed to turn the adjusting element to adjust the laser module to a correct position.

Abstract: A flashlight has a single lamp, a power storage element, and a switch. The switch operates by being incremented through a sequence of states, and each increment may be caused an application and release of pressure. The different states correspond to different lamp brightness levels, and may include an off state. An electronic controller may be included with connections to each of a number of contacts on the switch. The lamp may be a single LED efficiently operable over a range of power and brightness levels at a consistent color output.

Abstract: An apparatus for illuminating the interior of a balloon includes a cylindrical plug with an integrally-formed radially extending integral flange insertable within the balloon neck. A light element is affixed to the plug and disposed within the neck. A battery is electrically connected to the light element and is typically mounted next to the light element, or includes the light element in a single assembly. Switching is provided to turn the lighting element on and off which, in the preferred embodiment is effected by inflating the balloon with the apparatus inserted into the balloon neck. The light element may be affixed to the head of the apparatus by magnetic means, by means of a screw-on cap, or by other well-known techniques.

Abstract: A multi-position switched grip for a searchlight includes a two-ended hand-grip. Each end has a thumb-operable pushbutton switch. A person holds the grip between palm and fingers with thumb on one or the other switch. One end has a hinge to which are connected an electrical power receptacle and a lamp mount. The hinge has a release which is normally biased to lock the hinge in one or the other of two orientations relative to the grip body. Pressing the release inward unlocks the hinge and allows the stein to rotate between the two orientations. The switches are configured and electrically connected such that pressing either switch once and releasing it alternates the searchlight between the ON and OFF conditions.

Abstract: The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of the present invention comprise at least one signal switch and a microchip in communication with the switch wherein the switch is only capable of transmitting a signal to the microchip that the switch has been activated or deactivated. The microchip is in communication with the exhaustible power source of the electronic device and controls (i) the power on/off function of the device, (ii) at least one other function of the device in response to activation and deactivation signals from the switch, and (iii) an automatic shut off function in response to the receipt of an activation signal from the switch.

Abstract: A flashlight in accordance with the present invention includes a chamber, end cap, head assembly and lamp holder assembly. The end cap includes a bowed tripod portion to facilitate standing the flashlight on a flat surface. The head assembly includes a reflector and a lens. In one embodiment of the invention, the head assembly includes an elliptical reflector. In accordance with another embodiment of the present invention, the flashlight having a elliptical reflector is matched with a negative or planar lens. In accordance with another embodiment of the present invention, the head assembly includes an hyperbolic reflector. In accordance with another embodiment of the present invention, the flashlight having a hyperbolic reflector is matched with a positive or planar lens. In accordance with another aspect of the present invention, the flashlight includes electrode connections which prevent the conduction of electrical energy from batteries which are improperly aligned within the flashlight.

Abstract: A laser bore sight (10) is disclosed hollow, outer housing (11) having an internally threaded, rear portion (14), and a threaded end cap (17) is sized and shaped to be threaded to the housing rear portion (14). The end cap (17) includes a threaded, tubular stem (18) having an annular rim (18?), an electrically insulative spacer (20) and a spring (21). The bore sight (10) also includes a laser diode (24), lens (25), a series of three batteries (26), an electrically conductive spring (27), and an electrical conductor. The end cap (17) is movable between an extended position with the spacer protruding from the end of the stem (18) and a retracted position with the spacer recessed within the stem so as to allow the battery to electrically contact the end cap.