JP3925677B2 - lighting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a renewal type luminaire that can be renewed (renewed) to a new luminaire by using a fixture main body of an existing ceiling-embedded luminaire embedded in a ceiling.
[0002]
[Prior art]
A lighting fixture that has been used for a long period of time is inevitably affected by deterioration of the lighting device such as a discharge lamp ballast and contamination of the reflector, resulting in a decrease in floor illumination and a loss of visual environment. In view of this, a renewal type lighting fixture capable of renewing an obsolete existing embedded ceiling lighting fixture with a new lighting fixture has been proposed in Japanese Patent Laid-Open No. 8-180726. This fixture uses the existing ceiling-mounted lighting fixture's fixture body to update the lighting fixture, so there is no need to remove the existing fixture's body while it is installed, and it can be updated to a new lighting fixture. This is advantageous in that it can be easily performed and the equipment cost can be reduced, and there is little waste during renewal and the appearance can be improved.
[0003]
Further, FIG. 10 in the above publication describes a technique that can replace an existing ceiling-embedded lighting fixture with a new lighting fixture by omitting an elongated base body to which a terminal block, a ballast, and a socket are attached. In other words, the ballast and the terminal block are arranged at the center in the width direction of the lower surface of the reflector, and these are covered with the central reflector having a V-shaped cross section so that the position of the ballast or the like in the case of the existing instrument body Regardless of the size, it is possible to arrange ballasts and terminal blocks for renewed lighting fixtures. And in FIG. 10 of the said gazette, the structure which attached the socket to the reflector is described, and it is suggested that a reflector also serves as a base | substrate.
[0004]
[Problems to be solved by the invention]
In the above publication, in the technique using the base, there is a description that the socket protrudes downward from the lamp socket mounting portion of the base and the socket is attached. Therefore, in FIG. Can be guessed.
[0005]
By the way, although the socket and the ballast on the lower surface of the reflector must be electrically connected via an electric wire, this connection structure is not described in the above publication. Various connection structures are conceivable. Specifically, the wire is not exposed and visually recognized so as not to impair the visual environment, which is one of the advantages of renewal. It is necessary to consider.
[0006]
Further, in the renewal type luminaire described in FIG. 10 of the above publication, there is no description about the electrical connection structure between the socket and the ballast as described above. Although the relationship with the mounting work is unknown, anyway, it is desired to facilitate these work.
[0007]
Accordingly, a first problem to be solved by the present invention is to obtain a renewal type lighting apparatus that can improve its appearance with a simple structure.
[0008]
A second problem to be solved by the present invention is to obtain a renewal type luminaire that can improve the workability of mounting a component to a reflector while solving the first problem.
[0009]
[Means for Solving the Problems]
In order to solve the first problem, the invention of claim 1 has a peripheral portion that contacts the periphery of the lower surface of the ceiling embedding hole and is disposed in the ceiling embedding hole, and is an existing ceiling embedded lighting fixture. A reflector covering the body, a fixing means connected to the instrument body and fixing the reflector to the ceiling embedding hole, a terminal block attached to the lower surface of the ceiling wall of the reflector, and a connection to the terminal block Connected to the lighting device via an electric wire and inserted into the socket mounting hole from the back side of the reflector. that the lamp socket, the lamp socket to the ceiling wall is formed in a size that can pass through a wire hole of the electric wire passes, said terminal block, is connected to the lighting device, these terminal blocks and the lighting device Is characterized in that the electric wire, and equipped with a, a central reflector plate attached to the reflector conceal the electric wire through holes.
[0010]
The installation procedure of the renewal type lighting apparatus according to the first aspect of the present invention is as follows. First, a reflector in which a terminal block, a lighting device, and a lamp socket are respectively attached to a ceiling wall is prepared. In this case, the terminal block and the lighting device are mounted on the lower surface of the ceiling wall of the reflector, and the lamp socket is protruded from the lower surface of the ceiling wall by inserting the socket mounting hole of the ceiling wall of the reflector from the back surface side of the reflector. Mounted. The electric wires connecting these sockets and the lighting device are wired through the wire passage holes in the ceiling wall, one end of which is connected to the lighting device, and the other end is connected to the socket on the back surface of the reflector. Then, the prepared reflector is connected to the fixture main body of the existing lighting fixture left in the ceiling embedding hole by the fixing means, and thereby the peripheral portion of the reflector is brought into contact with the lower surface of the ceiling embedding hole. Covering the existing instrument body. Next, after connecting the power line already drawn through the electric wire through hole to the terminal block, a central reflector is attached inside the reflector to cover the terminal block, the lighting device, and the electric wire through hole. Finally, a straight tube fluorescent lamp is mounted between the lamp sockets protruding into the reflector. With the above procedure, the installation of the renewal type lighting fixture is completed.
[0011]
In the lighting fixture thus installed, the electric wire electrically connecting the lighting device and the lamp socket can be covered with the central reflector on the lighting device side in the reflector, and the reflector The lamp socket side wired on the back side can be covered with a ceiling wall. Further, the power supply line drawn through the electric wire through hole can be covered with the central reflector. Therefore, although the lamp socket is inserted into the reflector, the electric wires are not exposed inside the assembled renewal luminaire. And since a central reflector is a component required in order to cover a terminal block, a lighting device, and an electric wire through-hole, it does not require a special component in order to make wires invisible.
[0012]
In order to solve the second problem, the invention of claim 1 is characterized in that the lamp socket has a size that allows the lamp socket to pass therethrough.
[0013]
In the lighting fixture according to the first aspect of the invention, the electric wire electrically connecting the lighting device and the lamp socket can be covered with the central reflector on the lighting device side in the reflector, and the reflector. The lamp socket side wired on the back side of the can be covered with a ceiling wall. Further, the power supply line drawn through the electric wire through hole can be covered with the central reflector. Therefore, although the lamp socket is inserted into the reflector, the electric wires are not exposed inside the assembled renewal luminaire. And since a central reflector is a component required in order to cover a terminal block, a lighting device, and an electric wire through-hole, it does not require a special component in order to make wires invisible. Moreover, the lamp socket previously connected to the lighting device via the electric wire can be passed through the electric wire through hole from the inner side of the reflector to the rear surface side, and can be inserted by being inserted into the socket mounting hole from the rear surface side. Therefore, it can be handled as an assembly in which the lighting device and the lamp socket are connected in advance via an electric wire.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
[0015]
First, the existing ceiling-embedded lighting fixture shown in FIG. 7 will be described. In FIG. 1, reference numeral 1 denotes an instrument body having an elongated rectangular box shape with an open lower surface, which includes a plurality of fixing brackets 2. These metal fittings 2 are attached across the instrument body 1 and at intervals in the longitudinal direction. The instrument body 1 hooks the fixing bracket 2 to the hole edge of the ceiling mounting hole 4 for mounting the instrument on the ceiling 3, and screws a nut into a suspension bottle (not shown) that passes through the upper surface wall 1 a of the instrument body 1. It is embedded and installed in the ceiling 3 by tightening.
[0016]
Inside the appliance body 1, a terminal block (not shown) and a discharge lamp ballast 5 as a lighting device electrically connected to the terminal block are built in, and the power supply drawn into the appliance body 1 in the terminal block. An F cable as a wire is connected. At both ends in the longitudinal direction of the appliance body 1, socket fittings 6 are respectively attached across the ends, and a pair of lamp sockets 7 are attached to these socket fittings 6 so as to protrude from the lower side. Each lamp socket 7 is electrically connected to the discharge lamp ballast 5 via an electric wire (not shown).
[0017]
The fixing metal fitting 2 has a pair of screw holes 2a (see FIG. 2), and an open bottom reflector 9 is attached to the lower side of the instrument body 1 by a decorative screw 8 screwed into the screw holes 2a. It has been. The reflector 9 has a peripheral edge portion 9a that contacts the periphery of the lower surface of the ceiling-embedded hole 4, and covers and hides the instrument body 1 by the attachment. Socket end holes (not shown) are provided at both ends in the longitudinal direction of the reflector 9, and the lamp socket 7 is inserted into the reflector 9 through these through holes. A straight tube fluorescent lamp 10 is attached between the lamp sockets 7 facing the longitudinal direction of the instrument body 1.
[0018]
Next, the luminaire 21 for renewing the existing luminaire will be described with reference to FIGS. As shown in FIGS. 1 and 2, the appliance 21 includes a reflector 22, a screw 23 as a fixing means, a terminal block 24, a discharge lamp stabilizer 25 as a lighting device, and a plurality of socket mounting holes 26. A plurality of lamp sockets 27, a plurality of electric wire through holes 28, and a central reflector 29 .
[0019]
Specifically, the reflector 22 used in place of the existing reflector 9 is formed by bending the side walls 22b obliquely from both sides in the width direction of the ceiling wall 22a as shown in FIGS. Are closed by the end walls 22c, and are formed into open bottom surfaces, and have a peripheral edge portion 22d at the lower end portion thereof that abuts the periphery of the lower surface of the ceiling embedding hole 4. The reflector 22 is connected to the fixing bracket 2 by a screw 23 that is threaded into the screw hole 2a of the fixing bracket 2 through an elliptical mounting hole 31 formed at both ends in the width direction of the ceiling wall 22a. Thereby, it is fixed to the existing instrument body 1 and is provided so as to cover and hide the body 1 from below. A new decorative screw may be used as the screw 21, but the existing decorative screw 8 can be reused. In this reuse, a new fixing means can be omitted, and the parts of the renewal type luminaire. The number of points can be reduced, which helps to reduce costs.
[0020]
A terminal block 24 and a discharge lamp ballast 25 electrically connected to the terminal block 24 are fixed to the lower surface of the ceiling wall 22a at the middle in the longitudinal direction of the reflector 22 by screws or the like. Although it is possible to employ a discharge lamp ballast using an iron core as the discharge lamp ballast 25, the light output of the lighting fixture 21 can be improved, the power can be saved, the reflector 22 can be made thinner, and the central reflector 29 can be reduced. It is desirable to employ an inverter-type electronic ballast or a high-power type electronic ballast that can be downsized and that is capable of operating a fluorescent lamp described later at high frequency.
[0021]
At both ends in the longitudinal direction of the ceiling wall 22 a of the reflector 22, electric wire through holes 28 are formed, and socket mounting holes 26 are respectively formed in the vicinity of both sides of the through holes 28. Each of the socket mounting holes 26 is a long and narrow square hole. These holes 26 and 28 may be formed by holes formed in the ceiling wall 22a, or may be formed by closing the open end of the notch provided in the ceiling wall 22a with the end wall 22c. The holes 26 and 28 may be provided apart from each other in the longitudinal direction of the ceiling wall 22a.
[0022]
An F cable 34 as a power line (not shown) behind the ceiling is drawn into the reflector 22 through the electric wire through hole 28, and this cable 34 is plugged into the terminal block 24 in a self-locking manner. Note that the electric wire through hole for drawing the F cable 34 may be provided separately from the electric wire through hole 28. And although the magnitude | size of the electric wire through-hole 28 is taken as the magnitude | size which can pass the lamp socket 27 in this embodiment, it is not restrict | limited to this. As shown in FIGS. 3 and 4, a folded edge portion 28 a is provided at the hole edge of the wire passage hole 28. As shown in the figure, the edge portion 28a may be bent not on the back surface of the ceiling wall 22a but on the bottom surface.
[0023]
The lamp socket 27 employs a lamp tube 27 suitable for supporting a high-frequency lighting dedicated straight tube type fluorescent lamp (commonly referred to as an Hf lamp), which will be described later. These sockets 27 are formed of a socket body 35 as shown in FIGS. It has an upper edge portion 35a and a pair of elastically deformable locking claws 36 positioned immediately below the upper edge portion 35a. The upper edge portion 35 a is larger than the socket mounting hole 26. Each lamp socket 27 is inserted into the socket mounting hole 26 from the back surface side of the reflector 22 by inserting the socket body 35 into the socket mounting hole 26 while elastically deforming the locking claw 36 and simultaneously with the passage, The hole edge of the socket mounting hole 26 is sandwiched between the upper edge portion 35a and the tip of the locking claw 36, thereby being inserted into the socket mounting hole 26.
[0024]
As shown in FIG. 3, each lamp socket 27 has an electric wire connection port 37 at the upper portion arranged on the back side of the reflector 22 in a state of being attached to the reflector 22. In the present embodiment, the wire connection ports 37 are provided so as to be exposed at the upper end of the socket body 35, and by inserting one end of the wire 32 into these connection ports 37, the wire 32 is built in the socket body 35. It is connected to a contact piece (not shown) in a self-locking manner. The other end of the electric wire 32 is passed through the electric wire through hole 28 and connected to the discharge lamp stabilizer 25 in a self-locking manner.
[0025]
The central reflector 29 having the same length as the distance between the both end walls 22c of the reflector 22 has, for example, a V-shaped cross section, is located at the center in the width direction of the reflector 22, and is a terminal block. 24, the discharge lamp stabilizer 25, and the electric wire through hole 28 are covered and attached in the reflector 22. The central reflecting plate 29 has a hook-like engagement provided by a plurality of reflecting plate holders 38 (only one is shown in FIG. 1) having slit-shaped locking holes (not shown) provided in the central reflecting plate 29 fixed to the lower surface of the ceiling wall 22a. It is attached to the reflector 22 by being hooked on the stop 38a. Instead of this configuration, the tongue piece bent outward from the upper edge of the central reflector 29 is inserted into the slit-like hole of the cut dowel provided corresponding to the ceiling wall 22a and hooked. Thus, it may be attached to the reflector 22.
[0026]
The lamp sockets 27 are located on both sides of the central reflector 29, and the straight tube fluorescent lamp 33 is supported by the sockets 27. These lamps 33 are preferably the Hf lamps 33 described above.
[0027]
Next, a procedure for updating (renewing) an existing ceiling-embedded lighting fixture will be described.
[0028]
First, after removing the fluorescent lamp 10 from the existing lighting fixture, each decorative screw 8 is removed, the reflector 9 is removed, and then each lamp socket 7 is removed, and the existing fixture body 1 on the ceiling 3 is removed. Only to remain. A terminal block and a discharge lamp ballast 5 (not shown) remain built in the main body 1, and the F cable 34 serving as a power line connected to the terminal block is pulled off from the terminal block.
[0029]
Next, the renewal lighting fixture 21 is mounted on the ceiling. At the time of mounting, a reflector 22 is prepared in which the terminal block 24 and the discharge lamp stabilizer 25 are attached in advance to the lower surface of the ceiling wall 22a, and the lamp socket 27 is attached to each socket attachment hole 26, respectively. The attachment of each electric component to the reflector 22 is performed at the production factory of the lighting fixture 21 or at the site where the lighting fixture 21 is installed. At this time, the discharge lamp stabilizer 25 and each lamp socket 27 are connected via the electric wires 32. Supplied as a pre-connected ballast assembly (lighting device assembly).
[0030]
Therefore, after the discharge lamp stabilizer 25 is screwed to the lower surface of the ceiling wall 22a, each lamp socket 27 is attached by passing the socket 27 together with the electric wire 32 connected thereto from the lower side of the ceiling wall 22a through the electric wire through hole 28. Then, the lamp socket 27 is pulled out to the upper side of the ceiling wall 22a (the back side of the reflector 22) and then inserted into the socket mounting hole 26 from the upper side. As a result of this insertion, the pair of locking claws 36 of the socket body 35 pass through the edge of the socket mounting hole 26 while being elastically deformed in a direction in which the distance between them becomes narrow, and immediately after that return to the original state. The hole edge of the socket mounting hole 26 is sandwiched between the pawl 36 and the upper edge portion 35 a of the socket body 35, so that the lamp socket 27 is attached to the reflector 22. With this attachment, as described above, the ballast side portion of the electric wire 32 passed through the electric wire through hole 28 is wired on the lower surface of the ceiling wall 22a, and the socket side portion of the electric wire 32 is the upper surface of the ceiling wall 22a. Wiring is performed on the back surface of the reflector 22.
[0031]
The reflector assembly assembled and prepared as described above is inserted into the ceiling embedding hole 4 so that the peripheral edge portion 22d of the reflector 22 abuts the lower surface of the ceiling embedding hole 4, and at this time, one of the wire assemblies is inserted. The F cable 34 described above is drawn into the reflector 22 through the hole 28 and then fixed to the existing instrument body 1. In this fixing, screws 23 are passed upward through the respective mounting holes 31 formed in the ceiling wall 22a, and these screws 23 are screwed into the screw holes of the fixture 2 of the existing instrument body 1, respectively. And do it. In other words, it is performed by connecting the reflector 22 to the existing instrument body 1.
[0032]
In this case, since the lamp socket 27 is attached to the ceiling wall 22a of the reflector 22 with almost no protrusion on the back side thereof, the upper end of the lamp socket 27 is located directly below the socket fitting 6 of the existing instrument body 1. Even if they are arranged to face each other, the socket mounting bracket 6 does not get in the way. Moreover, since various electric parts such as the terminal block 24, the discharge lamp ballast 25 , and the lamp socket 27 are disposed at least most inside the reflector 22, these electric parts are used for the above-described update. It does not interfere with the work by interfering with the existing instrument body 1. And the reflector 22 fixed to the ceiling 3 by the above procedure covers the existing instrument main body 1.
[0033]
Thereafter, the F cable 34 that has been drawn in is inserted and connected to the terminal block 24, and then the central reflector 29 is placed inside the reflector 22 so as to be positioned between the lamp sockets 27 facing the reflector 22 in the width direction. Install. This attachment is performed by hooking the slit-like locking hole 29a of the central reflecting plate 29 to the hook-shaped locking portion 38a of the reflecting plate holder 38 on the lower surface of the ceiling wall 22a. The ballast side portion of the terminal block 24, the discharge lamp stabilizer 25, the electric wire through hole 28, and the electric wire 32 that passes through the through hole 27 is covered by the central reflector 29 thus attached.
[0034]
Finally, a straight tube type Hf lamp 33 is attached between the lamp sockets 27 facing the longitudinal direction of the reflector 22. The existing lighting fixture can be updated to the new lighting fixture 21 by the above procedure, and the state is shown in FIG.
[0035]
In the lighting fixture 21 installed on the ceiling 3 in this way, the electric wire 32 electrically connecting the discharge lamp ballast 25 and the lamp socket 27 attached to the reflector 22 is connected to the ballast side. Can be covered with the central reflector 29, and the socket side wired on the back side of the reflector 22 can be covered with the ceiling wall 22a of the reflector 22. Further, the F cable 34 drawn through the wire through hole 28 can also be covered with the central reflecting plate 29.
[0036]
Therefore, since the electric wires 32 are not exposed inside the assembled renewal type lighting fixture 21, the electric wires 32 reaching the lamp socket 27 are visually recognized, and the specific details of the lighting fixture 21 are not damaged. The visual environment can be improved. In this case, since the central reflector 29 is a component necessary to cover the terminal block 24, the discharge lamp stabilizer 25, and the wire passage hole 28, a special component is required to make the wires invisible. Never do. In the case where the wire through hole 28 is provided and the wire 32 is passed through the back side of the reflector 22 as described above, the wire 32 is routed inside the reflector 22 and wiring to the lamp socket 27 is performed. A cover member for concealing the electric wire 32 on the lamp socket 27 side needs to be attached to the end of the reflector 22, but such a measure can be omitted. Therefore, the visual environment of the updated lighting fixture 21 can be improved with a very simple structure.
[0037]
Reference numeral 39 in FIGS. 1 and 6 is a light control body such as a baffle that is used by being attached to the lower part of the central reflector 29 as required. In the case of using this, it is only necessary to further improve the visual environment. In addition, since the light irradiation direction is controlled by the light control body 39, it is excellent in that the reflection of light on a personal computer display or the like can be prevented.
[0038]
Further, as described above, the lamp socket 27 previously connected to the discharge lamp stabilizer 25 via the electric wire 32 is passed through the electric wire through hole 28 from the inside of the reflector 22 to the back side, and from this back side. The structure in which the discharge lamp ballast 25 and the lamp socket 27 are connected in advance through the electric wire 32 can be handled by the configuration in which the lamp lamp is inserted into the socket mounting hole 26 and mounted. Therefore, since these components can be mounted on the reflector 22 as described above, the mounting workability can be improved.
[0039]
Moreover, since the folding edge portion 28a is provided at the hole edge of the electric wire through hole 28, when the lamp socket 27 is passed through the through hole 28, there is no possibility that the operator will be damaged by the hole edge. Workability can be improved. In addition, it is possible to eliminate the possibility that the insulation coating such as the F cable 34 and the electric wire 32 passed through the electric wire through hole 28 is rubbed with the hole edge to be damaged and lead to electric leakage.
[0040]
Moreover, in the luminaire 21 to be updated as described above, it is not necessary to remove the luminaire main body 1 of the existing luminaire while leaving it in the ceiling embedding hole 4, so that the luminaire 21 can be easily updated. It can be done. In addition, since the remaining existing fixture main body 1 is used as a member for supporting the lighting fixture 21, it is possible to reduce the equipment cost and to reduce the waste associated with the renewal. Furthermore, since various electric parts required for the reflector 22 are attached, a base for supporting these electric parts and parts for fixing the electric parts to the existing instrument main body 1 are not required, so that they are updated. Since the lighting fixture 21 has a small number of parts and a small number of mounting steps as described above, the equipment cost can be reduced.
[0041]
And since the updated lighting fixture 21 uses the electronic ballast of the inverter system only for high frequency lighting as the discharge lamp ballast 25, with the narrow width of this ballast 25, the width of the central reflector 29 The straight tube fluorescent lamp 33 is also an Hf lamp dedicated for high-frequency lighting, and its tube diameter is narrower than that of an existing general straight tube fluorescent lamp. Therefore, when the Hf lamp 33 is replaced, It is possible to secure a large space for inserting a finger and improve its workability. In addition, since the Hf lamp 33 is turned on at a high frequency, the floor illumination can be higher than that of the existing lighting fixtures in the office lighting or the like with the same number of installations as the existing lighting fixtures.
[0043]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0045]
According to the first aspect of the present invention, the lighting device and the lamp socket are connected by using the central reflector and the ceiling wall of the reflector necessary for covering the terminal block, the lighting device, and the wire passage hole. This eliminates the exposure of the electric wires and the power lines that are drawn inside the reflecting plate, so that it is possible to improve the instrumentation while having a simple structure. In addition, since the lighting device and the lamp socket can be handled as an assembly in which the lighting device and the lamp socket are connected in advance via an electric wire, it is possible to improve the workability of mounting the component on the reflector.
[Brief description of the drawings]
FIG. 1 is a side view showing a partial cross section of a lighting apparatus according to a first embodiment of the present invention.
2 is an exploded perspective view showing the lighting apparatus shown in FIG. 1. FIG.
FIG. 3 is a perspective view showing one end portion of a reflector provided in the lighting apparatus shown in FIG. 1;
4 is a cross-sectional view taken along the line ZZ in FIG. 3;
FIG. 5A is a front view showing a lamp socket used in the lighting apparatus according to the first embodiment. FIG. 5B is a side view showing the lamp socket of FIG.
FIG. 6 is a cross-sectional view showing a state in which the lighting fixture according to the first embodiment is attached to the fixture main body of the existing lighting fixture.
FIG. 7 is a side view showing a cross section of an existing ceiling-embedded lighting fixture.
[Explanation of symbols]
1 ... Existing equipment body,
2 ... Fixing bracket,
4 ... Ceiling hole,
21 ... Lighting equipment to be updated,
22 ... reflector,
22a ... ceiling wall of reflector,
22d ... the peripheral edge of the reflector,
23 ... Screw (fixing means),
24 ... terminal block,
25. Discharge lamp ballast (lighting device),
26: Socket mounting hole,
27: Lamp socket,
28 ... Wire hole,
28a: the folded edge of the wire hole,
32 ... Electric wire,
33 ... Straight tube fluorescent lamp.

Claims (1)

A reflector that has a peripheral edge that contacts the periphery of the lower surface of the ceiling-embedded hole, is disposed in the ceiling-embedded hole, and covers the fixture body of the existing ceiling-embedded lighting fixture;
  A fixing means connected to the appliance body and fixing the reflector to the ceiling embedding hole;
  A terminal block attached to the lower surface of the ceiling wall of the reflector and a lighting device connected to the terminal block;
  Socket mounting holes formed at both longitudinal ends of the ceiling wall;
  A lamp socket connected to the lighting device via an electric wire, and inserted into the socket mounting hole from the back side of the reflector;
  The ceiling wall is formed with a size allowing a lamp socket to pass through, and an electric wire through hole through which the electric wire passes,
  The terminal block, the lighting device, the electric wire connected to the terminal block and the lighting device, and a central reflector attached to the reflector so as to cover the wire through hole;
The lighting fixture characterized by comprising.

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