Abstract:
A modularized light system, a control module and a power module are provided. The modularized light system comprises at least a light module, a control module and a power module. The internal and external wiring of the power source is integrated into the power module. The wiring of the control circuit and the power transmission is integrated into the control module. The wiring of the power transmission and the light source is integrated into the light module. A novel design uses a single power module and a control module for transmitting and controlling the power to one or a plurality of light module. One or more connection units detachably connect the light modules. Thus, the system installation is simplified and design coordinated with advantages such as fast assembly, saving assemble time, saving effort, a neat appearance, no wire entanglement, and flexibility of extending lighting range can be achieved.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present disclosure relates to a light system; in particular, to a modularized light system, a control module thereof and a power module thereof. 
         [0003]    2. Description of Related Art 
         [0004]    General residential interior design uses hanging cabinet facilities for home storage items, and the space below the cabinets usually designed to place a workbench. Personal book cabinet and the reading desktop below the bookcase, or the wide cabinets in the kitchen and the cooking bench below the cabinets need under cabinet lighting with proper size fitting in with the corresponding cabinet. In other words, the lighting below the cabinet is an important part of indoor lighting. As the cost of the LED (light-emitting diode) decreases, along with the development of lighting technology and the advantage of saving energy for the LED, the LED has gradually been the main light source of the cabinet lighting for residential design. 
         [0005]    Most of the commercially available LED cabinet lights are long cartridge type, such as the built-in cabinet light shown in  FIG. 1A  and  FIG. 1B . That is, the driving power, control circuit and the light unit are integrated in the case of the long cartridge. The model shown in  FIG. 1A  only has the alternative current (AC) power input port, and the model shown in  FIG. 1A  can be used individually, thus it cannot be serially connected for extending the lighting range. The model shown in  FIG. 1B  has both of the power input port and the power output port, thus it has expandability, in which one or more connection units can be utilized to connect with multiple light devices in series to extend the lighting range. This type of the built-in cabinet light occupies large space due to the built-in driving power and the control circuit, thus the appearance of this type of the built-in cabinet light looks bulky, thereby the transportation costs is increased and it does not meet the stylish slim design. Further, the built-in cabinet light is a design of parallel circuit when the built-in cabinet light is serially connected to be extended, in which the AC power with high voltage transmits from the output port of the first light module to the input port of the second light module through the connection unit, wherein leakage of electricity is possible during transmitting the high voltage AC power between the light modules, and the potential risk of electric shock could not be avoided when the user manipulates the light device. Further, each of the connected light devices has built-in driving circuit and control circuit in itself, thus it expenses multiple manufacturing costs and it is uneconomical. In order to improve multiple disadvantages of the commercially available products, the present invention discloses a novel design which utilizes module concept and transmitting low voltage DC power from one power module and one control module to a plurality of light modules connected in series through one or more connection units, and the serial connected light modules can be controlled by the control module alone. Wherein the control module is not necessary connected right after the power module but anywhere in the middle of light modules or even at the end through a connection unit. Aesthetics, security, expandability, control flexibility and economic low cost can be achieved such that a better cabinet lighting solution is obtained. 
       SUMMARY OF THE INVENTION 
       [0006]    The object of the present disclosure is to provide a modularized light system and a control module and a power module thereof utilizes modularized connection manner to provide a plurality of combinations of light system, in order to meet the requirement of diverse lighting needs. 
         [0007]    According to an embodiment of the present disclosure, the modularized light system comprises at least one light module, a control module and a power module, wherein the internal and external wiring of the electric power source is integrated into the one power module. The wiring of the control circuit and the electric power transmission is integrated into the one control module. The wiring of the electric power transmission and the light source is integrated into the light module. According to an embodiment of the present disclosure, a complete light system is established by serially connecting one power module, one control module and at least one light module while utilizing detachable connection units. Thus, one power module delivers the electric power to one control module and one or more light modules, and one control module is used to control turning-on or turning-off the one or more light modules. Wherein the control module can be connected anywhere in the system after the power module. 
         [0008]    In order to achieve the aforementioned objects, according to an embodiment of the present disclosure, a modularized light system is provided. The modularized light system comprises a first light module, a control module, a first connection unit and a power module. The first light module has a first input portion and a first output portion. The first input portion has a first power terminal and a first control terminal. The first output portion has a second power terminal and a second control terminal, wherein the first light module receives a control signal through the first control terminal of the first input portion and receives a direct current (DC) power through the first power terminal of the first input portion, and the first light module emits light according to the control signal. The control module comprises a human machine interface, an output portion and an input portion. The output portion has a power output terminal and an output control terminal. Further, the input portion can be designed to have the same connection as that of input portion of a light module. The human machine interface of the control module generates the control signal and outputs the control signal through the output control terminal and the control terminal of input portion. The first connection unit has a pair of first power wires and a first control wire. The output portion of the control module detachably connects to the first input portion of the first light module through the first connection unit, wherein the pair of power wires is used for detachably connecting to the first power terminal of the first input portion and the power output terminal of the output portion. The first control wire is for detachably connecting to the first control terminal of the first input portion and the output control terminal of the output portion. The first power terminal of the first input portion of the first light module receives the DC power from the control module through the pair of first power wires of the first connection unit. The first control terminal of the first input portion of the first light module receives the control signal from the control module through the first control wire of the first connection unit. The power module has a power output portion, and the power module detachably connects to the input portion of the control module, for providing the DC power to the control module. 
         [0009]    In order to achieve the aforementioned objects, according to an embodiment of the present disclosure, a control module is provided. The control module is used for detachably connecting to a first light module and a power module of a modularized light system. Further, the control module can also be used for detachably connecting between two light modules or at the end of a light module. The first light module has a first input portion and a first output portion. The first input portion has a first power terminal and a first control terminal. The first output portion has a second power terminal and a second control terminal. The control module comprises a human machine interface, an output portion and an input portion. The human machine interface generates a control signal. The output portion electrically connects to the human machine interface. The output portion has a power output portion and an output control terminal. The power output terminal outputs a DC power, and the output control terminal outputting the control signal. The input portion electrically connects to the human machine interface and the output portion. The input portion detachably connects to the power module, for receiving the electrical power from the power module. The output portion of the control module detachably connects to the first input portion of the first light module through the first connection unit. A pair of first power wires of the first connection unit is used for detachably connecting the first power terminal of the first input portion and the power output portion of the output portion. A first control wire of the first connection unit is used for detachably connecting the first control terminal of the first input portion and the output control terminal of the output portion. The first power terminal of the first input portion of the first light module receives the DC power from the control module through the pair of first wires of the first connection unit. The first control terminal of the first input portion of the first light module receives the control signal from the control module through the first control wire of the first connection unit. 
         [0010]    In order to achieve the aforementioned objects, according to an embodiment of the present disclosure, a power module is provided. The power module is used for a modularized light system. The modularized light system has a first light module and a control module. The power module detachably connects to the control module of the modularized light system. The control module has a output portion and an input portion. The first light module has a first input portion and a first output portion. The first input portion has a first power terminal. The first output portion has a second power terminal. The power module comprises a power output portion. The power output portion detachably connects to the input portion of the control module, for providing a DC power to the control module. The output portion of the control module detachably connects to the first input portion of the first light module through a first connection unit. A pair of first power wires of the first connection unit is used for detachably connecting to the first power terminal of the first input portion and a power output terminal of the output portion, wherein the first power terminal of the first input portion of the first light module receives the DC power from the control module through the pair of first power wires of the first connection unit. 
         [0011]    In summary, a modularized light system and a control module and a power module thereof are offered. Modularized connection manner is utilized to achieve various combinations of lighting, in order to meet the requirement of diverse lighting needs. It is worth mentioning that the design of this invention unlike the concept of the well-known junction box which only providing wire connections. The characteristics of this invention are listed in the following: (1) integrating the electric power transmission wires, the control signal wires and the light source into one module box for being the light module; (2) integrating the electric power transmission wires and the control circuit into one module box for being the control module; (3) integrating the AC/DC power wiring and the power driving circuit into one module box for being the power module. The disclosed embodiments utilize the concept of modularized design, in order to use the space efficiently, reduce the number and the length of the wires, and avoid wire entanglement. This concept of modularized design could provide high flexibility to the system design and also offer convenience of the assembling for enhancing the usability of the system. 
         [0012]    In order to further the understanding regarding the present disclosure, the following embodiments are provided along with illustrations to facilitate the disclosure of the instant disclosure. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0013]      FIG. 1A  shows a perspective diagram of a conventional cabinet lighting system; 
           [0014]      FIG. 1B  shows a perspective diagram of a conventional cabinet lighting system; 
           [0015]      FIG. 2A  shows architecture of a modularized light system according to an embodiment of the present disclosure; 
           [0016]      FIG. 2B  shows another architecture of a modularized light system according to an embodiment of the present disclosure; 
           [0017]      FIG. 2C  show an architecture of an AC modularized light system according to an embodiment of the present disclosure; 
           [0018]      FIG. 3  shows a schematic diagram of a modularized light system according to an embodiment of the present disclosure; 
           [0019]      FIG. 4  shows a schematic diagram of a control module of a modularized light system connecting to a first light module according to an embodiment of the present disclosure; 
           [0020]      FIG. 5  shows a schematic diagram of a first light module of a modularized light system connecting to a second light module according to an embodiment of the present disclosure; 
           [0021]      FIG. 6  shows a schematic diagram of a control module according to an embodiment of the present disclosure; 
           [0022]      FIG. 7  shows a schematic diagram of a power module according to an embodiment of the present disclosure; 
           [0023]      FIG. 8  shows a schematic diagram of a modularized of light system according to an embodiment of the present disclosure; 
           [0024]      FIG. 9  shows a schematic diagram of a first light module connecting to a second light module with a right angle between its input and output orientations; 
           [0025]      FIG. 10A  shows a schematic diagram of a light module with a right angle between its input and output orientations; 
           [0026]      FIG. 10B  shows a schematic diagram of the construction of a light module; 
           [0027]      FIG. 10C  shows a schematic diagram of a light module with more than two input and output connections; and 
           [0028]      FIG. 10D  shows a schematic diagram of a round shape light module with adjustable angle between its input and output orientations. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0029]    The aforementioned illustrations and following detailed descriptions are exemplary for the purpose of further explaining the scope of the present disclosure. Other objectives and advantages related to the present disclosure will be illustrated in the subsequent descriptions and appended drawings. 
         [0030]    [An Embodiment of a Modularized Light System, a Control Module and a Power Module Thereof] 
         [0031]    Please refer to  FIG. 2A  and  FIG. 2B  showing architectures of a modularized light system according to an embodiment of the present disclosure. The modularized light system  1  substantially includes three main modules which are a light source  10 , a control module  11  and a power module  12 . The power module  12  could receive an alternative current (AC) power (such as the electricity mains). The power module  12  coupled to an AC power source could utilizes internal AC/DC conversion circuit to convert the AC power to a DC power, and provides the DC power to the control module  11 . However, in another embodiment, the power module  12  may not connect to the AC power source but utilize an internal DC power source or a battery to provide a DC power. When the control module  11  receives the power from the power module  12 , the control module  11  could provide a control signal to the light source  10  according to the user&#39;s manipulation, for controlling the light status of the light source  10 . Connection wires are utilized to establish detachable connections between each module. The user or the person of installing the light systems could conveniently achieve the installation for the light systems according to the environment, wherein the length of the connection wires for connecting each of the modules may be designed in a variety of length, for providing a flexible installation scheme corresponding to the distances between the modules and the relative positions. 
         [0032]    The control module  11  may comprises a variety of human machine interfaces such a touch control switch, a button switch or a touchless switch (which may be an infrared sensor switch), for the user to manipulate the light system. Due to the modularized design, the control module  11  may be set up at a position anywhere within the system and after the power module allowing the user to manipulate conveniently, and also the position of the light source  10  is not influenced. 
         [0033]    The light source  10  may comprises at least a light module or a plurality of light modules independent to each other, and the light modules could be detachably connected or removable. As shown in  FIG. 2A  for example, the light source  10  comprises a first light module, a second light module . . . etc. The present disclosure does not restrict the number of the light modules. Accordingly, the modularized light system  1  could provide conveniently manipulation for the user, and a variety of light needs could be taken into account. Details of the embodiment can be referred to the following descriptions. 
         [0034]    Please refer to  FIG. 2A  in conjunction with  FIG. 3 ,  FIG. 3  shows a schematic diagram of a modularized light system according to an embodiment of the present disclosure. The modularized light system comprises a first light module  101 , a second light module  102 , a third light module  103 , a control module  11 , a first connection unit  13 , a second connection unit  14 , a third connection unit  15  and a power module  12 . As shown in  FIG. 3 , the light source  10  includes three light modules, which are the first light module  101 , the second light module  102  and the third light module  102  for ease of explanation, but the number of the light modules included in the modularized light system is not restricted thereto. Additionally, in this embodiment, the power module connects to an AC outlet  20 , however when the power module  12  includes a direct current power source (such as a battery) the power module  12  may not need to connect the AC outlet  20 . 
         [0035]    Please refer to  FIG. 2C  showing a schematic diagram of an AC modularized light system. As high voltage LED light source for plug-in to AC power source has been widely adopted in the lighting industry, the manufacturing cost of high voltage LED has been substantially reduced. The use of high voltage LED to simplify or eliminate the driver for these purposes is matured. The AC modularized light system is adopted with this merit. 
         [0036]    Please refer to  FIG. 3  in conjunction with  FIG. 4 ,  FIG. 4  shows a schematic diagram of a control module of a modularized light system connecting to a first light module according to an embodiment of the present disclosure. The most simplified architecture of the modularized light system includes the first light module  101 , the control module  11 , the power module  12  and the first connection unit  13  connected between the first light module  101  and the control module  11 . Here, the condition of only the first light module  101  included in the light source is described firstly, then the added second light module  102 , the third light module  103  . . . etc. would be further described in subsequent. 
         [0037]    The first light module  101  has a first input portion  1011  and a first output portion  1012 , and the first input portion has a first power terminal  1011   a  and a first control terminal  1011   b . The first power terminal  1011   a  and the first control terminal  1011   b  are both electrical connectors. For example, the first power terminal  1011   a  is a male electrical plug or a female electrical outlet. It is worth mentioning that the first power terminal  1011   a  is for providing the direct current (DC) power loop, thus the first power terminal  1011   a  generally includes two connectors or two jacks. The first control terminal  1011   b  is adapted for transmitting the control signals, thus at least one connector or jack is needed accordingly. 
         [0038]    The first output portion  1012  has a second power terminal  1012   a  and a second control terminal  1012   b . The first output portion  1012  of the first light module  101  would only be used when the user needs to connect the second light module  102  after to the first light module  101  in series. When the first light module  101  is not connected to the second light module  102 , the second power terminal  1012   a  and the second control terminal  1012   b  are opened without any function. The manner of the second light module  102  connecting to the first light module  101  would be further described in the subsequent embodiment shown in  FIG. 5 . In a simple way, the first light module  101  can be controlled by the control module through the first input portion  1011 , and the first light module  101  can transmit the electrical power and the control signal from the control module  11  to the subsequent light modules. 
         [0039]    The first light module  101  receives the control signal through the first control terminal  1011   b  of the first input portion  1011 , and receives the DC power through the first power terminal  1011   a  of the first input portion  1011 . The first light module  1011  emits light according to the control signal. 
         [0040]    The control module  11  comprises a human machine interface (HMI) (which is not shown in  FIG. 4  and would be described later referring to  FIG. 6 ), an output portion  112  and an input portion  113 . The output portion  112  has a power output terminal  112   a  and an output control terminal  112   b . The human machine interface generates the control signal and outputs the control signal through the output control terminal  112   b . The first connection unit  13  has a pair of first power wires  131  and at least a first control wire  132 . The output portion  112  of the control module  11  detachably connects to the first input portion  1011  of the first light module  101  through the first connection unit  13 , wherein the pair of power wires  131  is used for detachably connecting to the first power terminal  1011   a  of the first input portion  1011  and the power output terminal  112   a  of the output portion  112  The first control wire  132  is for detachably connecting to the first control terminal  1011   b  of the first input portion  1011  and the output control terminal  112   b  of the output portion  112 . The first power terminal  1011   a  of the first input portion  1011  of the first light module  101  receives the DC power from the control module  11  through the pair of first power wires  131  of the first connection unit  13 . The first control terminal  1011   b  of the first input portion  1011  of the first light module  101  receives the control signal from the control module  11  through the first control wire  132  of the first connection unit  13 . The power module  12  has a power output portion (which is not shown in  FIG. 4  and would be further described thereafter referring to  FIG. 7 ), and the power output portion detachably connects to the input portion  113  of the control module  11  through the power line  19 , for providing the DC power to the control module  11 . 
         [0041]    Please refer to  FIG. 3  in conjunction with  FIG. 5 ,  FIG. 5  shows a schematic diagram of a first light module of a modularized light system connecting to a second light module according to an embodiment of the instant disclosure. The circuit topology of the first light module  101  is substantially identical to the circuit topology of the second light module  102 ; however the present disclosure does not restrict the appearance and the size of the first light module  101  and the second light module  102 . That is, the appearance and the size of the first light module  101  and the second light module  102  may not the same, but the circuit topologies of the first light module  101  and the second light module  102  are the same, having the input portions and the output portions in the same specification, wherein the input portion receives the DC power and the control signal, the output portion is for outputting the DC power and the control signal received by the light module itself (through the input portion of itself) to other subsequent connected light module. Further, the same specification of input portions and the output portions are designed for the light modules, the control module and the power module to be in compliance with the connection unit such that to provide high flexibility of module connection. For instance, a direct connection of the power module to the first light module may enable a direct driving of the light module without through the control module. Furthermore, the control module can also be connected after a light module. Such a variation of module connection is in the scope of the modularized concept of the present disclosure. The control module is in fact an optional item which can be voided by using a wall switch to operate the on/off performance of the modularized light system. Alternatively the control module can be integrated with the power module or can be integrated with the light module to become a two-module light system. 
         [0042]    Specifically, when the first light module  101  is further connected to the second light module  102 , the connection manner is described as follows. The second light module  102  has a second input portion  1021  and a second output portion  1022 . The second input portion  1021  has a third power terminal  1021   a  and a third control terminal  1021   b . The second output portion  1022  has a fourth power terminal  1022   a  and a fourth control terminal  1022   b . The second light module  102  receives the control signal through the third control terminal  1021   b  of the second input portion  1021  and receives the DC power through the third power terminal  1021   a  of the second input portion  1021 . The second light module  102  emits light according to the control signal. 
         [0043]    A second connection unit  14  has a pair of second power wires  141  and at least one second control wire  142 . The first output portion  1012  of the first light module  101  detachably connects to the second input portion  1021  of the second light module  102  through the second connection unit  14 , wherein the pair of the second power wires  141  is used for detachably connecting to the second power terminal  1012   a  of the first output portion  1012  and the third power terminal  1021   a  of the second input portion  1021 . The second control wire  142  detachably connects to the second control terminal  1012   b  of the first output portion  1012  and the third control terminal  1021   b  of the second input portion  1021 . 
         [0044]    Please refer to  FIG. 3  in conjunction with  FIG. 5  again. When the second light module  102  is further connected to the third light module  103 , the second light module  102  could utilize a third connection unit  15  for detachably connecting to the third light module  103 . It is worth mentioning that the specifications of the connection terminals of the first connection unit  13 , the second connection unit  14  and the third connection unit  15  are the same, however the lengths of the mentioned first connection unit  13 , the second connection unit  14  and the third connection unit  15  may be different, thus the user could select the proper connection unit according requirement in practical applications, for connecting the needed number of the light modules, and the position of each light module would not be limited due to any specific length of the connection unit, the flexibility for arrangement with the use of space could be ensured accordingly. 
         [0045]    For example, the third light module  103  has a third input portion (which is the same as the second input portion  1021 ) and a third output portion (which is the same as the second output portion  1022 ). The third input portion has a fifth power terminal (which is the same as the third power terminal  1021   a ) and a fifth control terminal (which is the same as the third control terminal  1021   b ). The third output portion has a sixth power terminal (which is the same as the fourth power terminal  1022   a ) and a sixth control terminal (which is the same as the fourth control terminal  1022   b ), wherein the third light module  103  receives the control signal through the fifth control terminal of the third input portion and receives the DC power through the fifth power terminal of the third input portion, and the third light module  103  emits light according to the control signal. The third connection unit  15  (as shown in  FIG. 5 ) has a pair of third power wires  151  and a third control wire  152 . The second output portion  1022  of the second light module  102  detachably connects to the third input terminal of the third light module  103  through the third connection unit  15 , wherein the pair of third power wires  151  is for detachably connecting to the fourth power terminal  1022   a  of the second output portion  1022  and the fifth power terminal of the third input portion, and the third control wire  152  detachably connects to the fourth control terminal  1022   b  of the second output portion  1022  and the fifth control terminal of the third input portion. 
         [0046]    Please refer to  FIG. 3  in conjunction with  FIG. 6 ,  FIG. 6  shows a schematic diagram of a control module according to an embodiment of the present disclosure. The control module  11  may comprise a body  110 , a human machine interface  111 , an output portion  112  and an input portion  113  disposed on the body  110 . The appearance of the body is for ease of explanation, but not for restricting the scope of the instant disclosure. The human machine interface of the control module may be a touch control switch, a button switch or a touchless switch (such as an infrared sensing switch), but the present disclosure is not so restricted. The type of the human machine interface  111  may be changed according to the practical requirement. And, the position of the human machine interface  111  on the body  110  is also not so restricted. The input portion  113  receives the DC power from the power module  12 . The output portion  112  may has three connectors for example, in which two connectors represent the power output terminal  112   a  and the left one is the output control terminal  112   b . The power output terminal  112   a  provides the DC power to the connected light module, for example the first light module  101 . The first light module  101  may further transmits the DC power to the connected second light module  102 , the second light module  102  may further transmits the DC power to the connected third light module  103 , and so on. The connections between each light module are achieved by utilizing the connection unit, and the length of the connection unit is not limited. It is worth mentioning that the control module  11  and the light modules are positioned detachably, thus the position of the light source  10  (including all light modules) may be different from the position of the human machine interface  111  of the control module  11 , for example the human machine interface  111  may be far away from the light source  10  (including all light modules). Thus, the user may not stay close to the light source  10  (including all light modules) while manipulating the human machine interface  111 . The control module  11  could be arranged close any position which is convenient to the user in manipulation, and the control module  11  does not need to be at the same position of the light source  10  (including all light modules), thereby the convenience of the usage of the light system is provided. 
         [0047]    Furthermore, the control module  11  does not need to be right after a power module. It can be positioned anywhere among the light modules or at the end of the system. The multiple control modules with the same or different human machine interfaces may be connected in the system. These provide great convenience of manipulating the system performance. 
         [0048]    Please refer to  FIG. 3  in conjunction with  FIG. 4  and  FIG. 7 ,  FIG. 7  shows a schematic diagram of a power module according to an embodiment of the instant disclosure. The power module  12  comprise a body  120 , an alternative current (AC) input portion  121 , a battery containing portion  122 , an AC/DC conversion unit  123  and three pre-punched holes  133  located in different facets of the body  120 . The battery containing portion  122  could be disposed in the body  120 , for installing at least one battery. The mentioned battery is for providing the direct current power, and the present disclosure does not restrict the type of the battery. The AC/DC conversion unit  123  converts the alternative current power to the direct current power. The power module  12  shown in  FIG. 3  utilizes a power plug to receive the AC power. The AC/DC conversion unit  123  of the power module  12  in  FIG. 7  receives the exterior AC power through the alternative current power input portion  121  of the body  120 . In other words, the power module  12  may be designed as to provide the DC power by itself, such as utilizing the internal battery, or the power module  12  may convert the exterior high voltage AC power to the low voltage DC power for providing the needed DC power. The power module  12  provides a power output portion wherein the internal battery or the AC/DC conversion unit  123  utilizes the power line  19  (referring to  FIG. 3  and  FIG. 4 ) to detachably connect the input portion  113  of the control module  11  (shown in  FIG. 4 ). It is worth mentioning that the appearance of the power module  12  is a thin box, which is especially adapted for installation of the cabinet light platform; thereby the whole light device could be inserted into a narrow flat space of the cabinet. However, the aforementioned embodiment is only for ease of explanation, the present disclosure is not so restricted. Referring to  FIG. 7 , the power module  12  of this embodiment connects to the AC power through the alternative current input portion  121  and transmits DC power to the control module  11  through the power output portion pertaining to the AC/DC conversion circuit  123 , wherein this arrangement achieves the function of isolating high voltage AC power and low voltage DC power, so as to ensure the safety of the user. Basically, the power module  12  and the control module  11  can be designed to be separate, it only needs to use the power line  19  to connect the power module  12  and the control module  11 , and the power line connected to the power module  12  and the control module  11  may be detachable, such that it is convenient for the user to change the relative positions of the power module  12  and the control module  11  base on needs, so as to increase the flexibility in the use of the light system. Besides the AC power input portion  121  of the body  120 , the body  120  of the power module  12  is further designed with three pre-punched holes  133  (which are knock-out designed) located at different sides of the body, any of the pre-punched holes can be knocked to be opened for directly hard wiring the AC power lines with metal hose protection into the power module  12 . 
         [0049]    A cabinet system, particularly for kitchen cabinet, is often installed in a right angle corner in a kitchen area with two cabinet units integrated at the junction of two adjacent walls angled at 90 degrees. At the junction location where two cabinet units are integrated together a “L” shaped connector is often used to bridge the power transmission (signal transmission may also be needed for synchronization purpose) between the two adjacent under cabinet lights angled at 90 degrees with each other. In the absent of such “L” connector the connection between the two adjacent light modules often looks disordered. Furthermore, the junction location is often a dark area due to lack of an illumination unit suitable for installation at the junction location. Referring to  FIG. 8  in conjunction with  FIG. 9  and  FIG. 10 &#39;s, which schematically illustrates another embodiment of the present disclosure; wherein an under cabinet light system is installed with a kitchen cabinet system. The under cabinet light system includes three light modules  102 ,  103  and  104  linked together, the third light module  104  is installed with the left cabinet unit angled at 90 degrees against the other cabinet unit where the other two light modules are installed. As shown in  FIG. 8 , a linkable light module  200  is introduced at the junction location to bridge the light module  103  and the light module  104 . The linkable light module  200  serves three functions: the first function is to be used as an organizer to make the connection at the junction look organized; the second function is to be used as a turning connector to bridge the power transmission from the third light module  103  to the fourth light module  104 , wherein the two light modules are angled at 90 degrees against each other; the third function is to provide illumination to brighten the junction location. The linkable light module  200  is designed with one input portion  2011  and one output portion  2012  (see  FIG. 9  and  FIG. 10A ), wherein the orientation of the input portion  2011  and the orientation of the output portion  2012  are angled at 90 degrees with each other; the input portion accordingly includes a power input terminal  2011   a  for receiving power supply and optionally may also include a control input terminal  2011   b  for managing synchronization, the output portion accordingly includes a power output terminal  2012   a  for delivering power to the next light module and may optionally include an output control terminal  2012   b  for delivering control signal(s) to the next connecting light module. Further refer to  FIG. 10B  and  FIG. 10C , the linkable light module  200  is also composed of a body  3000 , a light diffuser  4000  and a plurality of light-emitting diodes  5000  surface-mounted behind the light diffuser for performing illumination function. Also please refer to  FIG. 10C , the linkable light module  200  comprises more than two input and output portions. Refer to  FIG. 10D , the linkable module  200  is a round shape body, wherein the angle between input and output orientations is different from a 90 degrees angle. 
         [0050]    According to above descriptions, a modularized light system and a control module and a power module thereof utilizes modularized connection manner to provide a plurality of combinations of light system, in order to meet the requirement of diverse lighting needs. Advantages of the embodiments are listed in the following: (1) A wire installation with more safety is provided. In security, the commercially available hardwire with higher voltage (such as 110V or 220V) is usually cooperated with a protection hose (applied for the European standards or American standard for example). In the modularized light system of the present disclosure, only the power module needs to connect with the hardwires, other modules such as the control module and the light module do not need to connect with the hardwires, thus applied voltage on the wiring of the control module, the light module and the connection units is lower voltage. Additionally, due to the lower voltage wires, the user does not need to worry about the leakage of electricity (in which the voltage of the leakage voltage is relative lower) when the user use the hand to touch (the switch) for manipulation. (2) A single power and a single control module are utilized to control one or more light modules, thus not all of the light modules (which may be the cabinet lights for example) have to connect with the corresponding power and control circuit in appearance. (3) The connections between the light modules are simple and can be adjusted as needed. (4) The light system could use the space efficiently, the number and the length of the wires can be reduced, thus the wire entanglement can be avoided while extending the system, and thereby the design and construction of the light system simplified. (5) The costs can be saved, and only one control module is needed even if multiple light modules are serially connected, for example: a multiple serially connected cabinet light shares the same control module. (6) The housing shapes for the three modules can be design coordinated to make the whole connected lighting system look elegantly organized in addition to the functional advantages. 
         [0051]    The descriptions illustrated supra set forth simply the preferred embodiments of the present disclosure; however, the characteristics of the present disclosure are by no means restricted thereto. All changes, alternations, or modifications conveniently considered by those skilled in the art are deemed to be encompassed within the scope of the present disclosure delineated by the following claims.