KR102229221B1 - Led downlight with heat radiating reflector and battery back up - Google Patents

Abstract

The present invention is installed on the ceiling of a passenger ship having a ceiling thickness of 30T or less, and does not require a separate insulation box (for example, a steel box) to prevent the spread of smoke in the event of a fire at a location that must satisfy the B-0 fire protection rating. It relates to a battery backup and an LED low beam with an insulation reflector that prevents smoke spread in advance by blocking the ceiling lighting installation hole through its own insulation reflector that does not melt by flames.

Description

LED DOWNLIGHT WITH HEAT RADIATING REFLECTOR AND BATTERY BACK UP}

The present invention relates to an LED low beam with battery backup and insulation reflector, which is installed on the ceiling of a passenger ship having a ceiling thickness of 30T or less, and separate insulation for preventing smoke spread in the event of a fire at a location that must satisfy the B-0 fire protection rating. Battery backup and insulation reflector applied to prevent smoke spread by blocking the ceiling lighting installation hole through its own insulation reflector that does not melt by flame even without a box (e.g., steel box) will be.

In general, the change from conventional light sources such as fluorescent lamps, incandescent lamps, halogens, etc. to LED light sources has been applied in real life with the keywords of extending the use time of lighting and saving energy for a long time. Likewise in the industrial lighting field, the application of LED light sources is rapidly increasing its share in each industrial field.

On the other hand, these LED light sources are being developed to be applied to limited interior spaces of passenger ships (Ferry & Cruise), and product design and performance are being developed, and a form suitable for ship structure and safety regulations of passenger ships is required.

In general, in the case of lighting for ships, a separate wool box or steel box must be installed inside the ceiling according to the fire protection grade.

For example, it is divided into non-class area, B-0 area, and B-15 area.In case of B-0 area, a steel box must be installed inside the ceiling, and in case of B-15 area, a wool box is installed inside the ceiling. shall.

However, in case of additional installation of such a box inside the ceiling in addition to lighting installation, a lot of labor has to be invested at the site, and the ceiling of the ship is equipped with various and complex equipment unlike the general building ceiling, so the box is installed due to interference. It has a problem that the work is not easy.

Since conventional LED lighting melts due to flames when a fire occurs, there is a problem that it is pierced in a lighting installation hole formed in the ceiling, and smoke flows into the opened space, and quickly spreads into the ship through the ceiling. Therefore, in order to prevent the inflow and spread of such smoke, a wool box or a steel box must be installed inside the ceiling, so there are various problems such as insufficient space in the ceiling of the ship, interference with various equipment, and a lot of man-hours. It is a situation that is occurring.

Korean Patent Registration No. 10-1577798

The present invention was derived to solve the above-described problem, and is installed on the ceiling of a passenger ship having a ceiling thickness of 30T or less, and a separate insulation box for preventing smoke spread when a fire occurs at a location that must satisfy the B-0 fire protection rating. Provides battery backup and insulation reflector applied LED low beam to prevent smoke spread by blocking the ceiling lighting installation hole through its own insulation reflector that does not melt by flame without (e.g., steel box) I want to.

The battery backup and insulation reflector applied LED low beam according to an embodiment of the present invention includes a heat dissipation housing coupled to a lighting installation hole provided in the ceiling, an insulation reflector located inside the heat dissipation housing, and an LED located inside the heat insulation reflector. A lens module, a light distribution reflector connected to the distal end of the LED lens module and provided to adjust the distribution of light emitted through the LED lens module, connected to one side of the heat dissipation housing, and supplying power to the LED lens module It includes a driver module to be operated and a battery module electrically connected to the LED lens module through the driver module, and the insulation reflector prevents smoke generated under the ceiling from moving to the upper part of the ceiling through the lighting installation hole. When the power supply to the LED lens module through the cover and the driver module is cut off, power previously stored in the battery module may be supplied to the LED lens module.

In one embodiment, the heat dissipation housing may be characterized in that it includes one or more fitting supports to be fixed to the ceiling (fitting support).

In one embodiment, one or more heat radiation fins may be formed to protrude from the outer side of the heat radiation housing at regular intervals.

In one embodiment, the radiating fin is any of a radial shape radiating fin arranged at regular intervals along the circumference of the side surface of the radiating housing, and a vertical shape radiating fin arranged at regular intervals on the upper side of the radiating housing. It may be characterized in that more than one is applied.

In one embodiment, the insulating reflector may be characterized in that it covers the lighting installation hole without being melted by a flame when a fire occurs in the ceiling, as the heat insulating reflector corresponds to a steel material (STEEL).

In one embodiment, since the insulating reflector is formed to be fixed to the ceiling through a bolting method, it may be characterized in that it maintains a fixed state to the ceiling when a fire occurs in the ceiling.

In one embodiment, the LED lens module may be characterized in that any one of a dot lens type and an emission lens type is applied.

In one embodiment, the light distribution reflector is a pattern type for adjusting a glare rating of light emitted through the LED lens module, and a direction in which the light is directed downward rather than a side surface of the LED lens module. It may be characterized in that any one of the mirror type to be dimmed to is applied.

In one embodiment, the LED lens module may be characterized in that the COB LED element is applied.

In one embodiment, the driver module includes a housing consisting of an upper housing and a lower housing, a driver module body, a terminal block, a cable clamp, a driver module body, a driver PCB on which the terminal block and the cable clamp are mounted, and the driver PCB. It includes first and second connectors to be connected, and an external power line and a communication line are respectively connected to each of the first and second connectors.

In one embodiment, the outer side of the upper housing may be characterized in that the vertical heat dissipation fins arranged at regular intervals are applied.

In one embodiment, each of the upper housing and the lower housing may be provided with one or more straight air vent holes for ventilating the air inside the housing to the outside.

In one embodiment, since an inclined surface is formed at the distal end of the upper housing, when inserted through the lighting installation hole, interference with an inner wall positioned above the lighting installation hole may not occur.

In one embodiment, a heat dissipation housing cover capable of being detachably coupled from the heat dissipating housing through a rotation operation in one direction may be provided below the heat dissipating housing.

In one embodiment, the battery backup and insulation reflector applied LED low beam may be applied to a ceiling having a maximum thickness of 30 mm and a maximum separation distance of 145 mm from an inner wall of the ceiling.

In one embodiment, further comprising a battery module electrically connected to the LED lens module, when the power supply to the LED lens module through the driver module is cut off, the power previously stored in the battery module is the LED lens It may be characterized in that it is supplied to the module.

According to an aspect of the present invention, it is installed on the ceiling of a passenger ship having a ceiling thickness of 30T or less, and a separate insulation box (e.g., a wool box or a steel box) to prevent the spread of smoke in the event of a fire. ) It has the advantage of preventing smoke spread in advance by blocking the ceiling lighting installation hole through its own insulating reflector that does not melt by flame without).

In particular, since there is no need to install a separate insulation box in the ceiling space of a ship where various and complex equipment is already installed, problems such as insufficient space in the ceiling of the ship, interference with various equipment, and a lot of man-hours are solved. It has the advantage of being.

In addition, it has the advantage of satisfying the B-0 fire protection rating by inserting the insulation reflector of steel, which can replace the insulation box, into the heat dissipation housing in a double structure.

1 is an exploded perspective view of a battery backup and a heat insulation reflector applied LED low beam 100 according to an embodiment of the present invention.
FIG. 2 is a view showing the overall shape of the LED low beam 100 with battery backup and insulation reflector shown in FIG. 1.
3 is a view showing various forms of the radiating fins 111 shown in FIG. 1.
4 is a diagram illustrating an operation process of the fitting support 112 shown in FIG. 1.
5 is a cross-sectional view showing a state in which the heat insulation reflector 120 shown in FIG. 1 is installed in the heat dissipation housing 110.
6 is a diagram illustrating various types of the light distribution reflector 140 shown in FIG. 1.
FIG. 7 is a diagram showing a light distribution curve for each type of the light distribution reflector 140 shown in FIG. 6.
FIG. 8 is a diagram showing the shape of the driver module 150 shown in FIG. 1 in more detail.
FIG. 9 is a diagram illustrating a state in which the heat dissipation housing 110 and the driver module 150 shown in FIG. 1 are attached and detached.
10 is a view showing a process of installing the battery backup and the insulation reflector applied LED low beam 100 shown in FIG. 1 in a hall for lighting installation formed in the ceiling.
FIG. 11 is a view showing a detachable state of the heat dissipation housing cover 160 shown in FIG. 1.
12 is a view showing a state in which the battery backup and the insulation reflector applied LED low light 100 shown in FIG. 1 is electrically connected to a power line, a communication line, and a battery module previously installed on the ceiling.

Hereinafter, a preferred embodiment is presented to aid the understanding of the present invention. However, the following examples are provided for easier understanding of the present invention, and the contents of the present invention are not limited by the examples.

1 is an exploded perspective view of an LED downlight 100 with a battery backup and an insulation reflector according to an embodiment of the present invention, and FIG. 2 is an overall perspective view of the LED downlight 100 with a battery backup and an insulation reflector shown in FIG. It is a diagram showing the form.

Referring to Figures 1 and 2, the battery backup and insulation reflector applied LED downlight 100 according to an embodiment of the present invention is largely a heat dissipation housing 110, an insulation reflector 120, LED lens module 130, light distribution It may include a reflector 140, a driver module 150, and a heat dissipation housing cover 160.

The heat dissipation housing 110 is inserted into a lighting installation hole formed in the ceiling of a passenger ship or ship, and serves to discharge heat radiated through the LED lens module 130 to be described later.

In the interior of the heat dissipation housing 110, the heat insulation reflector 120, the LED lens module 130, the light distribution reflector 140, and the driver module 150 are positioned, and a heat dissipation housing cover 160 under the heat dissipation housing 110 ) Is combined.

The heat dissipation housing 110 may be made of aluminum to maximize heat dissipation.

In addition, one or more radiating fins 111 are formed to protrude from the outside of the radiating housing 110 at regular intervals, which will be described in more detail with reference to FIG. 3.

3 is a view showing various forms of the radiating fins 111 shown in FIG. 1.

Referring to FIG. 3, the radiating fin 111 includes a vertical shape radiating fin having a vertical shape and a circular radiating housing 110 so that the radiating fin 111 has a certain direction and spacing from the outside of the radiating housing 110. ) Can be divided into radial shape radiating fins that radiate along the outer periphery. This is to maximize the effective heat dissipation performance of the heat radiated from the LED chip contained in the LED lens module 130 in various forms of the heat dissipation fin 111.

Returning to FIGS. 1 and 2 again, one or more fitting supports 112 are provided outside the heat dissipation housing 110.

The fitting support 112 is coupled with a locking body that moves vertically along a vertical direction of the heat dissipation housing 110 and an elastic body that imparts an elastic force for pushing the locking body in a downward direction. This will be described in more detail with reference to FIG. 4.

4 is a diagram illustrating an operation process of the fitting support 112 shown in FIG. 1.

Referring to FIG. 4, the locking body of the fitting support 112 maintains a state in close contact with the side of the heat dissipating housing 110 in normal times, but when installed on the ceiling, the locking body is outside from the side of the heat dissipating housing 110. It rotates in the direction by about 90 degrees and protrudes, and at this time, the locking body has a force that is pushed toward the lower side of the heat dissipation housing 110 by the elastic body. At this time, the pushing force serves to support the load of the heat dissipation housing 110.

As at least three fitting supports 112 are provided on the side of the heat dissipation housing 110, the engaging bodies of the three or more fitting supports 112 push the upper side of the ceiling, thereby causing the heat dissipation housing 110 to be applied to the load. By this, the position can be fixed without falling in the downward direction.

The insulation reflector 120 is formed in a shape corresponding to the inner space of the heat dissipation housing 110, and does not melt by the flame even if the heat dissipation housing 110 melts in the event of a fire, and maintains a state filled with the lighting installation hole installed in the ceiling. Plays a role. This will be described in more detail with reference to FIG. 5.

5 is a cross-sectional view showing a state in which the heat insulation reflector 120 shown in FIG. 1 is installed in the heat dissipation housing 110.

5, the heat insulation reflector 120 serves to cover the inner space of the heat radiation housing 110 from the inside of the heat radiation housing 110, and the LED lens module 130 and the light distribution reflector inside the heat insulation reflector 120 140 is located.

As the insulation reflector 120 is formed of a steel material that does not melt, the LED lens module 130 including the heat radiation housing 110, the light distribution reflector 140, the heat radiation housing cover, etc., are flamed when a fire occurs. Even if it melts, the heat insulation reflector 120 does not melt and maintains a state filled with the lighting installation hole of the ceiling.

Therefore, since the insulation reflector 120 blocks the lighting installation hole, smoke generated under the ceiling is blocked by the insulation reflector 120 and cannot be moved to the top of the ceiling.

At this time, since the insulating reflector 120 is fixed to the ceiling through a bolting method, the LED lens module 130 including the heat dissipation housing 110 by the flame when a fire occurs in the ceiling, the light distribution reflector 140, and the heat dissipation housing Even if the cover or the like is melted down by the flame, the insulation reflector 120 does not melt and maintains a state filled with the lighting installation hole of the ceiling.

Returning to FIGS. 1 and 2 again, the COB LED element is applied to the LED lens module 130, and the COB LED has no shadow phenomenon compared to the general SMD LED, the color coordinate change according to the driving time is small, and the light output is reduced. Have. In addition, it has the advantages of small size, easy weight reduction, excellent heat dissipation, and excellent light efficiency.

On the other hand, it is noted that the above-described COB LED element is applied as an example, and the LED element applied to the LED lens module 130 may be applied to all other LED elements in addition to the COB LED element.

Meanwhile, in an exemplary embodiment, the COB LED element applied to the LED lens module 130 may be one of a dot lens type and an emission lens type.

The light distribution reflector 140 is connected to the lower end of the LED lens module 130 described above, and serves to adjust the distribution of light emitted through the LED lens module 130.

The light distribution reflector 140 is a pattern type for adjusting the glare rating of light emitted through the LED lens module 130, and the light is directed toward the lower side rather than the side of the LED lens module 130. Any one of the mirror types that adjusts to be dimmed can be applied. This will be described in more detail with reference to FIGS. 6 and 7.

6 is a view showing various types of the light distribution reflector 140 shown in FIG. 1, and FIG. 7 is a view showing light distribution curves for each type of the light distribution reflector 140 shown in FIG. 6.

Referring to FIGS. 6 and 7, first, when the light distribution reflector 140 corresponds to a mirror type and the LED lens module is a dot lens type or an emission lens type, a light distribution curve as shown in FIG. 7(a) appears.

In addition, when the light distribution reflector 140 corresponds to the pattern type and the LED lens module is a dot lens type or an emission lens type, a light distribution curve as shown in FIG. 7(b) appears.

Returning to FIGS. 1 and 2 again, the driver module 150 has one side connected to the heat dissipation housing 110, supplies power to the LED lens module 130 inside the heat dissipation housing 110, and controls the on or off operation. Plays a role. The driver module 150 will be described in more detail with reference to FIGS. 8 and 9.

FIG. 8 is a view showing the shape of the driver module 150 shown in FIG. 1 in more detail, and FIG. 9 is a diagram illustrating a detachable state of the heat dissipation housing 110 and the driver module 150 shown in FIG. 1. It is a drawing.

Referring to FIGS. 1 and 8, a bolt hole for bolting to the heat dissipation housing 110 and the heat dissipation housing 110 shown in FIG. 1 at the right end of the driver module 150, the driver module 150 and the heat dissipation housing 110 It can be seen that through holes are formed through which cables for electrically connecting) to each other pass.

In addition, the driver module 150 includes a driver PCB 155 on which the upper and lower housings 151 and 152, terminal blocks 153, cable clamps 154, terminal blocks 153 and cable clamps 154 are mounted, and It includes a connector 156 connected to the driver PCB 155, and the connector 156 is further divided into first and second connectors connected to an external power line and a communication line, respectively.

At this time, on the upper side of the upper housing 151, a vertical heat dissipation fin pattern having a pattern and spacing corresponding to the heat dissipation fin 111 formed on the outside of the heat dissipation housing 110 described above is formed, which is caused by a fire or other external circumstances. This is to prevent this as the ambient temperature may rise and the upper housing 151 itself may be distorted or deformed by heat.

The vertical heat dissipation fin pattern formed on the upper housing 151 may be elongated along the longitudinal direction of the upper housing 151, and the length is not limited.

In addition, one or more straight air vent holes 151a are formed on the upper side of the upper housing 151 to allow internal air to be ventilated to the outside.

The air vent hole 151a is formed along the longitudinal direction of the upper housing 151, and allows hot heat generated in the space between the upper housing 151 and the lower housing 152 to escape to the outside, as well as external It plays the role of allowing the cold air of the air to flow into the interior.

In addition, an inclined surface (e.g., 15 degree angle, etc.) is formed at the distal end of the upper housing 151, which is, when inserting the driver module 150 into the lighting installation hole formed in the ceiling, the distal edge of the upper housing 151 is This is to prevent interference by touching the upper wall of the interior.

Meanwhile, the driver module 150 is detachably coupled to the heat dissipation housing 110 and may be separated from the heat dissipation housing 110 in some cases.

Referring to FIG. 9, the heat dissipation housing 110 and the driver module 150 are basically separated, and during installation, the heat dissipation housing 110 and the driver module 150 are fastened and then fixed through bolting. do.

In this case, a cable is electrically connected between the heat dissipation housing 110 and the driver module 150. In some cases, even if the driver module 150 is separated from the heat dissipation housing 110, the connection state of the electrically connected cable does not change. Therefore, even if the driver module 150 is separated from the heat dissipation housing 110, there is no change in the role of the driver module 150.

This point can be applied when the heat dissipation housing 110 and the driver module 150 are located in a narrow space where it is difficult to locate at the same time.

On the other hand, in one embodiment, the heat dissipation housing 110 according to the present invention has a maximum thickness of 30 mm and a maximum distance of 145 mm from the inner wall surface inside the ceiling may be applied to the ceiling. Looking at the process of installing the LED low beam 100, which can be installed on the silver ceiling and applying a battery backup and an insulation reflector, to a lighting installation hole formed on the ceiling is as follows.

10 is a view showing a process of installing the battery backup and the insulation reflector applied LED low beam 100 shown in FIG. 1 in a hall for lighting installation formed in the ceiling.

Referring to FIG. 10, the thickness of the material varies depending on the fire zone for the interior ceiling material of a passenger ship or ship, and is configured from 0.6T (0.6mm) to 50T (50mm). This is much thicker than the ceiling thickness of interior materials for land use.

The heat dissipation housing 110 according to the present invention can be applied when the thickness of the ceiling material corresponds to 30 mm, and at this time, the driver module 150 is inserted through the lighting installation hole formed in the ceiling as shown in FIG. 10(a). Considering the length of (150), if the thickness of the ceiling material is 30mm, a minimum separation distance of 145mm from the inner wall surface inside the ceiling should be provided.

At this time, the heat dissipation housing 110 according to the present invention belongs to the thinner side considering the overall material thickness of the passenger ship or indoor ceiling material.

When the insertion of the driver module 150 and the heat dissipation housing 110 is completed as shown in FIG. 10(a), the heat dissipation housing 110 and the ceiling material are kept in a horizontal state as shown in FIG. 10(b), and accordingly, the fitting support The position may be fixed through or the heat dissipation housing 110 may be fixed to the ceiling through bolting.

In addition, in one embodiment, the battery backup and insulation reflector applied LED low beam 100 according to the present invention may further include a battery module (not shown) electrically connected to the above-described LED lens module 130.

The battery module is electrically connected to the connector of the driver module 150, and when power supply to the LED lens module 130 through the driver module 150 is cut off, the power previously stored in the battery module is supplied to the LED lens module. It acts as an emergency power source.

Returning to FIG. 1 again, the heat dissipation housing cover 160 may be detachable while the locking protrusion provided on the upper side is caught in the locking groove provided on the lower side of the heat dissipation housing 110, which will be described in more detail with reference to FIG. 11.

FIG. 11 is a view showing a detachable state of the heat dissipation housing cover 160 shown in FIG. 1.

Referring to FIG. 11, one or more locking protrusions 161 are formed on the heat dissipation housing cover 160. At this time, a locking groove 113 for engaging the locking protrusion 161 is provided at the lower side of the heat dissipating housing 110, and the locking protrusion 161 while the heat dissipating housing cover 160 rotates in one direction (eg, clockwise). ) Is engaged with the locking groove 113 and thus the heat dissipation housing cover 160 is fixed to the heat dissipation housing 110.

12 is a view showing a state in which the battery backup and the insulation reflector applied LED low light 100 shown in FIG. 1 is electrically connected to a power line, a communication line, and a battery module previously installed on the ceiling.

Referring to FIG. 12, power lines and communication lines are extended through a lighting installation hole formed in the ceiling, and are electrically connected through a connector provided in the driver module 150.

At this time, the battery module 170- is electrically connected to another cable and connector extending from the driver module 150, and when the power supply to the driver module 150 does not proceed smoothly, the battery module 170 is pre-stored. Power may be supplied to the driver module 150.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the present invention described in the following claims. You will understand that you can.

100: LED low beam with battery backup and insulation reflector
110: heat dissipation housing
111: heat dissipation fin
112: fitting support
113: jam groove
120: insulation reflector
130: LED lens module
140: light distribution reflector
150: driver module
151: upper housing
152: lower housing
153: terminal block
154: cable clamp
155: driver PCB
156: connector
160: heat dissipation housing cover
161: stumbling protrusion
170: battery module

Claims (15)

A heat dissipation housing coupled to a lighting installation hole provided in a ceiling and including at least three or more fitting supports to be fixed to the ceiling;
Because it is located inside the heat dissipation housing and corresponds to steel, it does not melt by flames when a fire occurs in the ceiling, covers the lighting installation hole, and is formed to be fixed to the ceiling through a bolting method. Accordingly, an insulation reflector that maintains a fixed state to the ceiling when a fire occurs in the ceiling;
An LED lens module positioned inside the adiabatic reflector, to which any one of a dot lens type and an emission lens type is applied, and to which a COB LED element is applied;
A pattern connected to the distal end of the LED lens module, provided to adjust the distribution of light emitted through the LED lens module, and for adjusting the glare rating of the light emitted through the LED lens module A light distribution reflector to which any one of a type and a mirror type that allows the light to be dimmed in a direction toward a lower side of the LED lens module, rather than a side portion of the LED lens module, is applied;
A driver module connected to one side of the heat dissipation housing and configured to operate by supplying power to the LED lens module; And
Includes; a battery module electrically connected to the LED lens module through the driver module,
The insulating reflector covers the smoke generated under the ceiling from moving to the upper part of the ceiling through the lighting installation hole, and when power supply to the LED lens module through the driver module is cut off, the battery module Pre-stored power is supplied to the LED lens module,
One or more radiating fins are formed to protrude at regular intervals on the outside of the radiating housing, and the radiating fins are radial shape radiating fins arranged at regular intervals along the circumference of the side surface of the radiating housing and at regular intervals from the upper side of the radiating housing. Any one or more of the arranged vertical shape heat dissipation fins are applied, and
The at least three or more fitting supports are respectively coupled with a locking body that moves vertically along a vertical direction of the heat dissipation housing and an elastic body that imparts an elastic force to push the locking body in a downward direction, and the locking body is the While maintaining close contact with the side of the heat dissipating housing, when installed on the ceiling, the locking body rotates and protrudes at an angle of 90 degrees outward from the side of the heat dissipation housing, and the locking body is moved to the heat dissipation housing by the elastic body. By pushing in the direction toward the lower side of the, characterized in that to support the load of the heat dissipation housing, battery backup and insulation reflector applied LED low beam.
delete delete delete delete delete delete delete delete The method of claim 1,
The driver module,
An upper housing and a lower housing;
Terminal block;
Cable clamp;
A driver PCB on which the terminal block and the cable clamp are mounted; And
Including; first and second connectors connected to the driver PCB,
An external power line and a communication line are respectively connected to each of the first and second connectors, respectively.
The method of claim 10,
On the outside of the upper housing,
LED low beam with battery backup and insulation reflector, characterized in that vertical heat dissipation fins arranged at regular intervals are applied.
The method of claim 10,
In each of the upper housing and the lower housing,
At least one straight air vent hole (Air vent hole) to allow internal air to be ventilated to the outside, characterized in that provided, battery backup and insulation reflector applied LED low beam.
The method of claim 10,
As an inclined surface is formed at the distal end of the upper housing, when inserted through the lighting installation hole, interference with the inner wall located above the lighting installation hole does not occur.
The method of claim 1,
On the lower side of the heat dissipation housing,
A heat-dissipating housing cover detachable from the heat-dissipating housing through a rotation operation in one direction; characterized in that provided, a battery backup and a heat-insulating reflector applied LED low-light.
The method of claim 1,
The battery backup and insulation reflector applied LED low beam,
LED low beam with battery backup and insulation reflector, characterized in that it is applied to a ceiling with a thickness of up to 30mm and a separation distance of up to 145mm from the inner wall of the ceiling.

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