KIT FOR ASSEMBLING A LED LIGHTING DEVICE, METHOD AND DEVICE THEREOF The present invention relates to a kit for assembling a LED lighting device, an assembly method and a LED lighting device deriving therefrom, such assembled device allowing to uniformly light up a delimited area which can differ in size depending on the number of LEDs employed, on the distance and surface of the area to be illuminated and on the direction of the light beam emitted by the LEDs.

In the lighting design field, LEDs, which generate an excellent quality lighting with minimum power consumption, are already commonly used for many applications. However, to achieve a sufficient flow and light yield, an appropriate number of LEDs must be employed with a corresponding number of wirings, one or more power suppliers and control circuit boards, as well as suitable dissipating means for the heat produced by such LEDs and since each LED requires a certain number of assembly elements, it is apparent that a LED lighting device must be extremely reliable and at the same time easy to assemble and manage, and most importantly it must allow for quick, simple and economic replacement of a component should it not function.

Recently, extremely powerful LED lighting devices have been made, consisting of series of units assembled together to generate a joint light beam to meet the most diverse technical requirements in various application fields. A particular example of artificial lighting application via LED is that of plant cultivation, not outdoors, but in environments such as greenhouses or inside public and private buildings, and especially for plant growth by hydroponic cultivation, i.e., artificial growth by means of nutrients even without the plant support in a base material, and for this purpose LED lighting devices have been created to be hung above the plant at a certain height, providing the plant with the required light.

Now, in such particular application field, a LED lighting device must be equipped with specific lighting characteristics in addition to technical characteristics entailing an efficient dissipation of the heat produced by the LEDs of these lamps, which therefore does not interfere with their growth.

An applicative example of the prior art is the Italian Patent Application No. MI2015A000200 by the same applicant, which despite the fact that it offers many advantages, it shows several drawbacks which are set forth hereunder and which the present invention aims to solve.

In fact, a particular drawback of the mentioned LED equipment relates to the difficult adjustment of the position of such devices in terms of development both in height and growth direction of the plants, in order to be able to optimise the light beam inclination and height which entirely or partly covers the plants being lighted.

Furthermore, such application field is rapidly witnessing an increasing number of private persons, housewives or in any case common people interested in such type of cultivation to be developed, for example indoors, inside apartments, in such a way to recreate a small home-made greenhouse. Actually, the well-known technique mentioned hardly meets the requirements of such type of clients which are often more inclined to minimise costs and therefore make the most common parts or well-known technical design of such LED equipment on their own, as well as forcing to customise such equipment to such a level that the production in pre-assembled series of such product in many cases becomes a sales obstacle for such client types. The pre- assembled LED equipment of the prior art, in fact, are proposed in the market at a price often too high for a common citizen.

A further drawback of the mentioned prior art relates to the interchangeability of the LED lamps, with their own specific characteristics of the single light source and optical section associated to it, since the known equipment do not provide an easy replacement of single light sources and circuit board thereof, nor the optical part associated to such light source.

The problems stated above are brilliantly solved through the assembly kit of the present invention, consisting of simple and economic components which do not require any special ability or technical knowledge to be assembled, so that they can be sold in an assembly box complete with few and simple user instructions for the assembly and its direct use by the end user, therefore also by a person with ordinary skill in the art.

The assembly kit for a LED lighting device, the assembly method and the LED lighting device deriving therefrom wishes to overcome the prior art problems set forth, by obtaining a kit which can be completely customised by the end user, which is easy to build, to maintain and to modify once assembled, based on the cultivation requirements of specific plants on which such equipment are utilized.

It is an object of the present invention to provide a kit suitable for all customer's customisation requirements and addressed to the specific do-it-yourself field, therefore easy to assemble even by people with ordinary or little skill in the art. It is a further object of the present invention to overcome the prior art drawbacks and therefore to provide a device which can be easily adaptable to the different types of hydroponic cultivation for the different types of plants as well as their growth, and therefore characterised by easy position modifications as a function of height and direction variation of the light beam, and therefore easily adaptable to the growth direction of the species cultivated by utilizing the lighting sources of the LED lighting device.

It is still an object of the present invention to obtain a device which is easy to configure by the end user and easy and quickly changeable through the easy and quick replacement of the optical sections, LED groups, specific PCB circuit boards referred to one or more LED groups.

It is yet a further object of the present invention to optimise, with respect to prior art, the dissipation system of the heat produced by the LED groups, achieving an efficient dissipation system with contained production costs.

It is yet a further object of the present invention to obtain a kit wherein the unit related to the lighting section and PCB circuit boards thereof is physically well separated with respect to the optical unit and electronic control unit, resulting in an easy interchangeability of the various units during, for example, the step of replacing faulty units and in any case easing the assembly of the device by the end user.

Finally, another object of the present invention is to minimise the number of elements of the hanging system, achieving an efficient and economic system which allows to easily hang said device achieved from assembling the kit above the plants to be cultivated, optimising a reduced number of hanging system elements with a solid and effective anchoring system of the hanging system to the device structure.

The assembly kit object of the present invention combined, if needed, with one or more of the annexed claims, can also provide a cooling system of the LED lighting groups of passive type, or with independent and single dissipating means for each lighting group or for more lighting groups, with dissipating means able to exchange heat with other types of fluids in addition to air, such as liquids or gel.

The LED lighting device assembled by the kit object of the present invention and according to the described assembly method combined, if needed, with one or more of the annexed claims, will also provide an electronic control board of the device able to fulfil multiple functions to ensure that the operation of the device is quite safe and highly performing. The circuit board can be of a quick connection type with microprocessor to diagnose malfunctionings, set up drive currents, and allows for gradually increasing or decreasing the brightness, and offers the possibility of installing components for remote control and/or for programming time light cycles.

The characteristics and advantages of the assembly kit and the device according to the present invention will become evident from the following detailed description of the constituent elements representing one preferred embodiment, given only as an example and not limitation, and to be examined together with the appended illustrative drawings, in which:

Figure 1 is an underneath view from the dissipation unit and the lighting system in a first embodiment of the assembly kit object of the invention;

Figure 2 is a top view of the dissipation unit and the lighting system in a first embodiment of the assembly kit object of the invention;

Figure 3 is an underneath view of the dissipation unit and the lighting system in a second embodiment of the assembly kit object of the invention;

Figure 3a is an underneath view of the dissipation unit seat 33 and PCB strip 42 of the lighting system in a second embodiment of the assembly kit object of the invention;

Figure 4 is a top view of the lighting dissipation unit in a second embodiment of the assembly kit object of the invention;

Figure 5 is an underneath view of the electronic control unit of the assembly kit object of the invention;

Figure 6 is an underneath view of the optical unit of the assembly kit object of the invention;

Figure 7 is an underneath view of the lighting system PCB board of the assembly kit object of the invention;

Figure 8 is a top view of the lighting system PCB board support of the assembly kit object of the invention;

Figure 9 is an underneath view of the lighting system PCB board support of the assembly kit object of the invention;

Figure 10 is a view of the hanging system of the assembly kit fitted on the lighting device object of the invention;

Figure 11 is a view of the innovative spring catch of the hanging system of the assembly kit object of the invention;

Figure 11a is an enlarged view of the innovative spring catch of the hanging system of the assembly kit object of the invention;

Figure 12a is a top view of the assembled lighting device object of the invention;

Figure 12b is an underneath view of the assembled lighting device object of the invention.

Referring to the figures of the annexed drawings, the kit for assembling a LED lighting device according to the present invention includes a dissipation unit 3 (Figs. 1 and 2 in a first embodiment and Figs. 3 and 4 in a second embodiment) whose main function is to dissipate the heat produced when LEDs are on, as well as the heat produced by the structural section of the assembled LED lighting device 7. The dissipation unit 3 is further adapted to house the lighting system 4 which in turn includes the PCB boards which are equipped with lighting LEDs and the support thereof allowing the electric connection for electronic management (Figs. 1 , 3, 7, 8, 9). The assembly kit object of the invention also includes an electronic control unit 2 (Fig. 5), belonging to the prior art, which indeed allows for electronic control, timing, management of alarms and programming the operation of the various PCB boards and therefore the lighting LEDs thereof, and also includes a shell configured to house a cooling fan, electronic control devices properly wired-up, a grid and a cooling fan, sockets for power supply of the device once assembled, actuating switches and adjustment handles, in addition to holes 20 for the passage of eyelets 100 of the L- shaped bracket 10 which will be described below. Finally, the kit object of the invention provides for an electrical kit 5 (Figs. 1 , 3) for the electrical wiring of the dissipation unit 3 in the assembly with lighting system 4 and power connection to the electronic control unit 2 or in any case to a power supply system of the LED lighting device, an optical unit 6 (Fig. 6) equipped with relative lenses for optical modulation of the light beam of the LEDs, a hanging system 1 (Figs. 1 , 3, 10, 11 , 11a) including means 10, 11 , 12 adapted to easily adjust the position and spatial inclination when hanging the LED lighting device 7 (Figs. 12a, 12b) once assembled and to easily direct and incline it in relation to the plant or culture to be illuminated.

It will be easily understood from the following description that all technical modifications brought to the various units and systems constituting the assembly kit object of the invention aim to fulfil the objects indicated and to solve the technical problems and drawbacks of the mentioned prior art.

With particular reference to figure 1 , the dissipation unit 3 consists of a monolithic dissipation body 34 which can be made by a metal structure which, in the preferred embodiment, is rectangular and equipped with a plurality of flaps 30 which cover and develop in parallel to each other for the entire length of the dissipation body 34 over the entire upper surface. Between said plurality of flaps 30 counter-shaped cavities were drawn (see Figs. 2, 4) which in turn provide for congruent shaped seats 31 on the bottom to house each support 40 of each PCB board 41 or PCB strip 42 equipped with a LED 411. In a preferred embodiment, each shaped seat 31 further provides for a hole 312a and a hole 312b both threaded and properly placed in the shaped seats 31 for the univocal connection and without any room for error, of a support 40, said holes 312a and 312b being placed in univocal correspondence and aligned with the position of the corresponding holes 404a and 404b of support 40.

On the bottom surface of the dissipation body 34, in a first embodiment, a plurality of grooves were drawn 32 (see Fig. 2) longitudinal and parallel to the direction of the flaps 30; said grooves 32 adapted to easily house in the appropriate seat 33 each PCB board 41 , thus directly on the bottom surface of the dissipation body 34 of the dissipation unit 3. The grooves 32 are configured so as to provide at each housing seat 33 of PCB board 41 , and still of course at each shaped seat 31 of the PCB board support 41 , for a specific notch 330 adapted to abut the tooth 410 which each PCB board 41 is equipped with, thus allowing for the univocal positioning and without any room for error of each PCB board 41 in the relative housing seat 33.

Furthermore, each groove 32, always at each housing seat 33 of each PCB board 41 , also provides for holes 311 to allow the passage of electrical blade connectors 400 of the support 40 of each PCB board 41.

The dissipation body 34 also provides at each corner of the two open sides and therefore covered by the profile of the flaps 30, for corresponding threaded seats 35 to insert each rib 101 , which each L-shaped bracket 10 is equipped with, adapted to support the dissipation unit 3 and the entire LED lighting device 7 once assembled. To stably fix each L-shaped bracket 10, common screw means can be tightened in the threaded seats 35 allowing to lock the horizontal movement of each L-shaped bracket 10.

In a second practical embodiment, it is expected that the PCB boards 41 can be replaced by PCB strips 42 which contain more PCB boards configured along a strip (see Figure 3). In such case, the dissipation body 34, in addition to the technical characteristics set forth until now, provides for holes 311 to allow the passage of blade electrical connectors 400 of support 40 for each PCB strip 42, in each shaped seat 31 it provides for a hole 312a and a hole 312b both threaded and properly positioned for univocal connection without any room for error, of a support 40, said holes 312a and 312b being placed in univocal correspondence and aligned with corresponding holes 404a and 404b of support 40, threaded holes 37 being adapted to be fixed by common screws of the single PCB strip 42 in the specific seats 33 to the dissipation body 34.

With particular reference to Figure 3a, each PCB strip 42 provides for at least a pair of notches 413, also provided as mentioned in each PCB board 41 ; said notches 413 being adapted to allow the insertion of the blade connectors 400 of the support 40 during the insertion step of the PCB board 41 or the PCB strip 42 in the specific seats 33 on the lower face of the dissipation body 34.

Therefore, due to their mechanical configuration, seats 33 allow each PCB board 41 or PCB strip 42, and hence generally each PCB unit (41 , 42), to be slidely and univocally housed.

With particular reference to Figures 7, 8, 9, the lighting system 4 includes a plurality of PCB boards 41 or PCB strips 42 (see Fig. 3) equipped with a plurality of LEDs 411 , a plurality of pair of conductive plates 412 adapted to allow the power supply to the PCB boards 41 or the PCB strips 42, said conductive plates 412, during the assembly step, coming into contact with the blade connectors 400 of support 40 in turn wired by means of the electrical kit 5 for further electrical connection, if needed, with the electronic control unit 2 or with a power supply system of the LED device, object of the invention once assembled and fed by the power supply. As previously said,, each PCB board 41 finally provides for a special tooth 410 adapted to be housed and abutted in the corresponding notch 330 drawn at each housing seat 33 of the PCB boards 41 on the lower surface of the dissipation body 34, allowing for easy insertion of each PCB board 41 without any insertion error in its own seat 33 for the following electrical connection during the assembly step of the LED lighting device object of the invention.

The lighting system 4 also provides for a support 40 which can be easily introduced without any error in the illustrated shaped seats 31 arranged on the upper surface of the dissipation body 34. Such circumstance, in fact, is possible since the support 40 provides for a congruent shaped edge 401 to be housed in the shaped seat 31 in a corresponding shaped recess 315 drawn therein by specific and known fixing means which are screwed in corresponding holes 312a and 312b, aligned with corresponding holes 404a and 404b, respectively. Support 40 also provides for positive and negative electrical connectors 403 adapted to be connected univocally to the electrical kit 5, thus allowing for the electrical wiring of the lighting system 4 and the dissipation unit 3 with the given electronic control unit 2 or with a given power system of the lighting device object of the invention autonomously made by the user.

The kit object of the invention also includes an optical unit 6 (see Fig. 6) consisting of a lens holder shell 60 equipped with a plurality of holes 600 to house lenses 61 properly sized and made for the optical modulation of the light beam emitted by the LEDs, in order to enable the proper growth of the different types of plants or the same plant during different stages of its growth. As previously said, an advantage of the kit object of the invention consists in the interchangeability ease of its components and especially, in fact, the lenses 61 are equipped with a counter shape 611 allowing for the introduction of a bayonet coupling of each lens 61 inside the corresponding hole 600 of the lens holder shell 60 equipped with suitable teeth 601 allowing for the easy and quick bayonet coupling of each lens 61.

Finally, the kit object of the invention includes a hanging system 1 (see Figs. 10, 11 , 11a) consisting of a plurality of components that will be described below, and it especially includes hanging means 11 , 12 adapted to allow for the adjustment of the position and spatial inclination of the LED lighting device 7 object of the invention. More specifically, the means 10 consist of at least a pair of L-shaped brackets 10 equipped with eyelets 100 (see Figs. 1 , 3) which, once inserted in specific holes 20 of the electronic control unit 2 (see Fig. 10) and once the LED lighting device 7 has been assembled (see Figs. 12a, 12b) externally exiting the shell of the electronic control unit 2, allow for the insertion of a cord or in any case a hanging tool of the lighting device assembled to the ceiling or "grow room" covering where the assembled device will be placed. The fact that the L-shaped brackets 10 allowing for the hanging of the LED lighting device 7 are connected to the dissipation unit 3 which is the heaviest unit of the LED lighting device 7, ensures a greater safety and hanging stability, as well as the removability of such L-shaped brackets 10 allows for the total possibility of changing the inclination and spatial position of the LED lighting device 7 once assembled, since it is possible to install them next to the corners of the longest side, next to the corners of the shortest side or next to the opposite alternate corners, or along a diagonal line, of the dissipation body 34 of the dissipation unit 3.

Each L-shaped bracket 10 includes in its lower horizontal portion a rib 101 adapted to be horizontally slid inside the relative threaded seat 35 of the dissipation body 34 (see Figs. 1 , 3) and thus allowing for the horizontal insertion of each L-shaped bracket 10 inside the dissipation body 34. The form of the rib 101 and the threaded seat 35 only allow for the horizontal movement (insertion and removal during the assembly and disassembly steps of the device) and prevent the vertical movement of the L-shaped bracket 10. Furthermore, once the insertion of rib 101 has been carried out inside the relative threaded seat 35 by specific screw means tightened therein, the horizontal movement of the L-shaped bracket 10 is also locked during the assembly step. It is evident that during the disassembly step of the device object of the invention, in order to remove one L-shaped bracket 10, it is necessary to first unscrew the locking screw from the threaded seat 35. Therefore, by means of such a configuration of the L-shaped brackets 10 object of the invention, a solid and safe hanging of the entire structure of the assembled LED lighting device 7 is achieved.

The hanging system 1 also includes a handle 11 equipped with horizontal pins 111 at its ends adapted to be inserted inside eyelets 100 of each L-shaped bracket 10, said handle 11 being also equipped along its internal segment with a plurality of loops 110 allowing for the hooking of a cord 13 to hang the device in full safety. Hooking the cord 13 in the various positions allowed by the plurality of loops 110 of the handle 11 , several inclination angles of the LED lighting device can be achieved in order to adapt it to the growth conditions of the plant or the different types of plants to be illuminated.

The hanging system 1 also includes a specific innovative construction of a spring catch 12 which also provides for a tab 120 serving as an abutting constraint of the knot 130 or in any case a general matching part 130 made at the top of the hanging cord 13 which supports the spring catch 12 at its end, in turn hooked in one of the loops 110 of handle 11 , allowing, in this case as well, to achieve several inclination angles of the assembled lighting device. By placing the spring catch 12, for example, in a central loop 110c of handle 11 , the assembled LED lighting device will remain hanging in the horizontal position, whereas by placing the spring catch 12 in a loop 110a placed towards one of the two ends of handle 11 , the inclination of the assembled LED device 7 object of the invention will be achieved, depending on the required inclination. In order to then ensure the stability of the lamp in the inclined position, one or more hanging cords can be added, inserted if necessary in other loops 110 of handle 11 or in eyelets 100 free of one or more L-shaped brackets 10 inserted in the dissipation body 34, to stabilise the hanging position of the LED lighting device 7 object of the invention.

A further innovation of the hanging system 1 of the LED lighting device 7 assembled compared to the prior art consists in the fact that the assembly kit object of the invention only requires two anchorage and hanging points representing the two eyelets 100 of at least a pair of L-shaped brackets 10 inserted, by means of the relative ribs 101 , inside the respective threaded seats 35 of the dissipation body 34.

The LED lighting device, which derives from assembling the assembly kit described so far, is assembled according to the method which includes at least the following macro steps, further detailed below:

- assembly of the dissipation unit 3 with the lighting system 4 (from the first to the third step)

- connection of the electrical wiring by the electrical kit 5 (fourth step)

- insertion of at least a pair of L-shaped brackets 10 inside the relative threaded seats 35 in the dissipation unit 3, such L-shaped brackets 10 being adapted to be held by hanging tools 11 , 12 for adjusting the position and spatial inclination when hanging the LED lighting device 7 (fifth step).

More in detail, the LED lighting device 7, which derives from assembling the assembly kit described so far, is assembled according to the method which includes at least one of the following steps:

first step: after aligning hole 404a, hole 404b, the shaped edge 401 and support

40 with the shaped recess 315, hole 312a and hole 312b of each shaped seat 31 , respectively, and inserting blade connectors 400 inside holes 311 of the dissipation body 34, fix each support 40 on the relative shaped seat 31 with screw means or the like;

second step: house each PCB board 41 by inserting tooth 410 in the corresponding notch 330 of each seat 33 in the relative groove 32 and insert the blade connectors 400 exiting the holes 311 through notches 413 of the PCB board 41 ;

third step: slide PCB board 41 until overlapping occurs and then electrical contact between the blade connectors 400 and the conductive plates 412 of the PCB board 41 until tooth 410 is abutted by notch 330 of seat 33;

fourth step: connect the electrical kit 5 to the positive and negative electrical connectors 403 and complete the electrical wiring with the electronic control unit 2 or with the power supply system autonomously made by the user;

fifth step: insert rib 101 of each L-shaped bracket 10 in the corresponding threaded seat 35 of the dissipation body 34 and lock the horizontal movement by specific screw means tightened inside the threaded seat 35; sixth step: assemble the dissipation unit 3 and the lighting system 4 already assembled in the previous steps to the electronic control unit 2, letting the eyelets 100 of each L-shaped bracket 10 out of the shell of the electronic control unit 2 through the corresponding holes 20, and complete the mechanical assembly;

seventh step: insert lenses 61 in the lens holder shell 60 of the optical unit 6 through bayonet coupling;

eighth step: assemble optical unit 6 with the half-assembled product achieved in steps 1 to 6 through known mechanical fixing means;

ninth step: insert handle 11 through pins 111 inserted in eyelets 100 of at least a pair of L-shaped brackets 10;

tenth step: insert cable or hanging cord 13 in at least one loop 110 of handle 11 , or insert cord 13 equipped with a knot 130 to one of its ends, constraining it through a tab 120 of a spring catch 12 in turn inserted in a loop 110 of handle 11 ;

eleventh step: if necessary, insert a further cable in one or more of the eyelets 100 free from the L-shaped brackets 10 to further stabilise the spatial position of the lighting device thus assembled.

The assembly steps pointed out do not necessarily have to be performed in the order indicated and all performed from the first to the eleventh step. The end user can use any known electronic control unit 2 and apply it to the other described units, and can apply more hanging cables or in any case apply at least one which connects at least two eyelets 100, to replace the application of handle 11 , or can use spring catch 12 or not.

The disassembly method repeats the steps described above in the opposite way, that is from the eleventh to the first; the disassembly method can end in advance as well to allow, for example, repairing damaged pieces or replacing them and therefore become a repair or maintenance method.

Moreover, the assembly method, in case of the second embodiment, can provide for the replacement of each single PCB board 41 , the use of PCB strips 42, in which case the second and third steps already described are replaced with the next two steps:

second step bis: house each PCB strip 42 in the corresponding seat 33 of the corresponding line, inserting the blade connectors 400 exiting holes 311 through notches 413 of PCB strip 42,

third step bis: let each PCB strip 42 slide until it overlaps and therefore the electric contact between the blade connectors 400 and the conductive plates 412 of the PCB strip 42 is reached, until there is an alignment between the threaded holes 37 of the dissipation body 34 and the corresponding fixing holes of the PCB strip 42.

The LED lighting device 7 assembled according to the method described and object of the invention is therefore equipped with easily interchangeable PCB boards 41 or PCB strips 42, easily interchangeable lenses 61 , and a hanging system which eases the directionality of the light beam including a handle 11 equipped with a plurality of loops 110 adapted to allow for multiple hanging fixings and therefore a wide range of directionality and spatial position of the LED lighting device 7 object of the invention.

It should be noted that the use of one pair or two pairs or still three L-shaped brackets 10 of the hanging system 1 of the LED lighting device object of the invention, the use of a cable to replace handle 11 , any configuration of cables adapted to hang the LED lighting device object of the invention which use eyelets 100 of the L-shaped brackets 10 with or without the use of handle 11 or of the spring catch 12, any configuration of the PCB boards 41 therefore made individually or in the PCB strips 42 or in two-dimensional surfaces, any configuration of the L-shaped brackets 10 which therefore have a different shape, any configuration of the supports 40 and dissipation unit 3 are within the inventive scope of the invention.

Potential assembly kits of the LED lighting devices and/or in the absence of optical unit 6 and/or in the absence of electronic control unit 2 and/or in the absence of hanging system 1 are still within the inventive scope of the present invention.

It is also an object of the present invention, therefore, the use of such assembly kit and the LED lighting device obtained from the kit following the assembly method as previously described, in any technical field and therefore from the intensive agricultural scope to the single domestic use, both managed locally and in a system of LED lighting devices.

As for the electronic control board of the device of the electronic control unit 2, it should be observed that it can fulfil multiple functions which make the operation of the device quite safe and highly performing. The board is fast-connected with microprocessor to diagnose malfunctions, set up drive currents and allows for the gradual increase or decrease of brightness, and offers the possibility of installing components for remote control and/or for programming lighting time cycles.

These are only some of the preferred and possible embodiments of the assembly kit, the assembly method and the LED lighting device, further variants wherein the elements constituting the product/system are coupled/implemented in different ways or have alternative forms, but in any case are suitable to the scope described in the present invention, or materials of any kind, or any changes which in any case are within the scope described by the present invention, are to be considered alternative embodiments to those previously described, in which the modifications and changes regarding for example the structures chosen for the single mobile and fixed elements, materials adopted for each member and also the specifications of the actuating system can be brought without departing from the protection scope of the present invention as defined in the annexed claims.

The assembly kit for the LED lighting device 7 includes:

- 1 hanging system including:

10 L-shaped bracket, 100 eyelets, 101 rib

11 handle, 110, 110a, 110c loops, 111 pins

12 spring catch, 120 tab

13 cord, 130 knot

-2 electronic control unit, including

20 holes

-3 dissipation unit including

30 flaps,

31 shaped seat of support 40, 311 holes for blade connectors 400, 312a and 312b holes adapted to be aligned to 404a and 404b holes, respectively, for fixing support 40, 315 shaped recess

32 grooves to house PCB boards 41 ,

33 seat, 330 notch to house tooth 410 of PCB board 41

34 dissipation body

35 threaded seat of rib 101 of L-shaped bracket 10

37 holes to fix PCB strips 42

-4 lighting system including

40 support

400 blade connectors, 401 shaped edge for housing on dissipation body 34, fixing means, 403 electrical connectors, 404a and 404b holes

41 PCB board, 42 PCB strip

410 tooth, 411 LED, 412 conductive plates, 413 notches to insert blade connectors 400 of support 40 -5 electrical kit

-6 optical unit including

60 lens holder shell, 600 holes for housing lenses, 601 teeth for lens bayonet coupling 61

61 lenses, 611 counter profile for bayonet coupling