LED tube lamp holder

Abstract

The present invention discloses a lamp holder 20 comprising a back wall 30, a side wall 35, and a bottom wall 40 formed to define a housing 25; a pin-cap 80 secured to the housing 25 and movable between inward and outward positions relative to the housing 25 upon pressing or releasing of the pin-cap 80; and a front cover 45 fastened to the housing 25. The housing 25 houses a conductor plate 50, a spring 55, and a pin-docking plate 60 formed from electrically conductive materials and arranged in electrical communication with electrical terminals of a power source to supply electricity to an LED tube lamp 100, 101, 202 fitted to the lamp holder 20. The pin-docking plate 60 comprises multiple pin-docking sites 65, 70, which permit interchangeably fitting of different types of LED tube lamps 100, 101, 102 onto one face of the lamp holder 20.

Description

LED TUBE LAMP HOLDERTECHNICAL FIELD

[0001] The present invention relates to electrical engineering, particularly an LED tube lamp holder and, more particularly, to a spring-type LED lamp holder.BACKGROUND

[0002] A spring-type lamp holder is known. In such type of lamp holder, a pair of lamp holders are arranged on an LED tube light fixture. Each lamp holder is provided with a spring and is disposed of on each end of the fixture. During installation of a lamp, the pin or pins on one end of the lamp is / are manipulated into a pin dock of the lamp holder. Then, by pressing the spring inwards, the pin or pins on the other end of the lamp are manipulated into the pin dock of the different lamp holders on the opposing end of the fixture. The exertion of the springs on each end of the lamp holds the lamp in place.

[0003] However, such a conventional spring-type lamp holder is designed to accommodate only one specific type of LED tube lamp: a G5, G8, or Fa8. Switching to a different type of tube lamp onto existing lamp holders on the fixture is impossible. Hence, the need to replace the lamp holder is unavoidable.

[0004] Therefore, there is a need for an alternative lamp holder configured to be compatible with different types of LED tube lamps, including a G5, G8, or Fa8, permitting interchangeably fitting of said different types of LED tube lamp onto one face of a lamp holder.SUMMARY OF THE INVENTION

[0005] It is an object of the present invention to provide an LED tube lamp holder, in particular a spring-type LED tube lamp holder configured to be compatible with different types of LED tube lamps, including a G5, G8, or Fa8 permitting interchangeably fitting of various types of said LED tube lamp onto one and same face of a lamp holder.

[0006] According to an embodiment of the LED tube lamp holder (hereinafter referred to as “lamp holder”) according to the present invention, the lamp holder defines a housing which houses a conductor plate, a spring, and a pin-docking plate. The conductor plate, the spring, and the pin-docking plate are made of electrically conductive material. Further, the conductor plate, the spring, and the pin-docking plate are arranged in electrical communication with electrical terminals to achieve an electrical supplying function to a tube lamp fitted to the lamp holder. The pin-docking plate defines multiple pin-docking sites wherein one or more docking sites are configured to receive one or more pins of the tube lamp.BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Advantages and characteristics of the invention will be appreciated from the following description, in which, as non-limiting examples, some preferable embodiments of the invention are described, in reference to the accompanying drawings, in which:Fig. 1 shows a perspective view of an embodiment of a lamp holder according to the invention;Fig. 2 shows a front view of the embodiment of the lamp holder of Fig. 1 ;Fig. 3 shows an exploded view of the embodiment of the lamp holder of Fig. 1 ;Fig. 4 shows an exploded view of an embodiment of a lamp holder according to the invention;Fig. 5 shows an exploded partially assembled view of an embodiment of a lamp holder according to the invention;Fig. 6 shows an exemplary relationship between an embodiment of a spring and an embodiment of a conductor plate of an embodiment of a lamp holder according to the invention;Fig. 7 shows an exemplary relationship between an embodiment of a spring, an embodiment of a conductor plate, and an embodiment of a pin-docking plate of an embodiment of a lamp holder according to the invention;Fig. 8 shows a back view of an exemplary relationship of an embodiment of a conductor plate, an embodiment of a spring, an embodiment of a pin-docking plate, and an embodiment of a pin-cap of an embodiment of a lamp holder according to the invention;Fig. 9 shows an embodiment of a pin-docking plate and examples of designated pindocking sites for G13, Fa8, and G5 LED tube lamps;Fig. 10A shows a front view of an alternative embodiment of a lamp holder according to the invention andFig 10B shows a front-top perspective view of the embodiment of the lamp holder according to Fig 10 A.DETAILED DESCRIPTION OF THE INVENTION

[0008] The present invention provides an LED tube lamp holder, in particular a spring-type LED lamp holder for LED tube lamps (“lamp holder”), configured to be compatible with different types of LED tube lamps, including a G5, G8, or Fa8 tube lamp permitting interchangeably fitting of said various kinds of LED tube lamp onto one single face of a lamp holder. The advantages and characteristics of the invention will be more apparent from thefollowing description, in which, as non-limiting examples, Figs 1-9 show some preferable embodiments of the invention.

[0009] The terms being used in reference to directions, such as “upper,” “lower,” “downward,” “front,” “back,” “top,” “bottom,” and the like throughout the description, are provided to explain a specific embodiment or configuration of a particular component or part of an embodiment as specifically oriented and illustrated in the drawings. While in use, the article of the invention may be arranged in different orientations. Hence, such terms are not intended as limitations to the invention or components of the invention.

[0010] Figs. 1 -3 represent perspective, front, and exploded views of an embodiment of a lamp holder 20 according to the present invention. The lamp holder 20 defines a housing 25 comprising a back wall 30, a side wall 35, a bottom wall 40, a front cover 45, and a pin-cap 80. Preferably, the back wall 30, the side wall 35, and the bottom wall 40 are integrally formed to define a housing 25. The housing 25 houses a conductor plate 50, a spring 55, and a pin-docking plate 60. The conductor plate 50, the spring 55, and the pin-docking plate 60 are formed from an electrically conductive material and arranged in electrical connection with electrical terminals of a power source, thereby achieving an electrical supply function, supplying electricity to a tube lamp 100, 101, 202 fitted to the lamp holder 20. The lamp holder 20, according to the present invention, is characterized in that the pin-docking plate 60 defines multiple pin-docking sites 65, 70, wherein one or more pin-docking sites among the multiple pin-docking sites 65, 70 are configured to receive one or more pins of a corresponding type of tube lamp 100, 101, 102 (for example, a Fa8, G5, or G13) permitting interchangeably fitting of different types of said LED tube lamp 100, 101, 102 onto the one and same face of the lamp holder 20. In other words, the invention provides a universal LED lamp holder that is configured to be compatible with different types of LED tube lamps, permitting the fitting of various types of LED tube lamps, including a G5, G8, or Fa8 tube lamp interchangeably onto the same face of the lamp holder 20. The lamp holder 20 defines a mating element 87 to secure the lamp holder 20 to a lighting fixture (not shown). The mating element 87 may be in the form of a pair of recesses disposed on each side of the side wall 35 above the bottom wall 40 of the lamp holder 20. Other forms of mating element 87 are possible, which will be discussed in further alternative embodiments below.

[0011] Fig. 4 shows a substantially identical lamp holder 20 as described in for Figs. 1 to 3, with a slight difference in the configuration of the pin-docking plate 60. The detailed configuration of this embodiment of the pin-docking plate 60 will be further described below.

[0012] As shown, for example, in Figs. 3-5, the conductor plate 50 is dimensioned as a substantially L-shaped. In an embodiment of the conductor plate 50, a lower section of the conductor plate 50 defines a seating portion 51 configured to facilitate electrical connection with the electrical terminals of the power source and fit onto a slot 41 formed on the bottom wall 40 of the housing 25. The seating portion 51 , preferably, includes an opening 52 configured to allow insertion onto a projection 36 disposed and the back wall 35 of the housing 25. Furthermore, a body portion 54 of the conductor plate 50, extending from the seating portion 51, is arranged between a pair of prongs 42 located on the upper section of the back wall 30 of the housing 25. As shown, the arrangement of the conductor plate 50 in relation to the slot 41, the projection 36, and the prongs 42 promotes the securing of the conductor plate 50 in position, thereby limiting movement or displacement of conductor plate 50 due to an exertion force from the spring 55. Furthermore, the tip of the body portion 54 of the conductor plate 50 is configured to form a downward bend 53. The downward bend 53 is configured to engage to an end of the spring 55 as the spring 55 is coupled to the pair of prongs 42 in which the top portion of the conductor plate 50 is arranged therein, as shown in Fig. 5. The arrangement of the conductor plate 50 relative to the slot 41, the projection 36 and said pair of prongs 42 together with the downward bend 53 of the conductor plate 50 further secures the spring 55 in place and thereby limiting movement or displacement of the spring 55. See Figs 5 and 6. Optionally, the back wall 30 may comprise a pair of guides 43, which guides or directs the top portion of the conductor plate 50 toward the pair of prongs 42 above it. The pair of guides 43 also helps to secure the conductor plate 50 in place and limit movement of the conductor plate 50 as well. See also in Fig. 5

[0013] Figs 6 and 7 show the respective configuration and relationship of the conductor plate 50, the spring 55, and the pin-docking plate 60, as well as the arrangement between them in greater detail. The Spring 55, as shown in Figs. 6 and 7, is realized as a spring coil. One end of the spring 55 is configured to couple (bestride) to the pair of prongs 42 on the back wall 30 of the housing 25, and an opposing end of the spring 55 is engaged to the pin-docking plate 60. The end of the spring 55 facing the upper portion of the conductor plate 50 is also engaged to the downward bend 53 of the conductor plate 50 wherein a U-shaped end 56 formed on the last coil of the end of the spring 55 facing the conductor plate 50 locates between the pair of prongs 42 and come into contact with the conductor plate 50. The U-shaped end 56 and its arrangement relative to the conductor plate 50 ensure a constant pressure to the conductor plate 50, hence a constant and continuous electrical supply to the LED tube lamp 100, 101, 102.

[0014] The conductor plate 50, the spring 55, and the pin-docking plate 60 are all made of electrically conductive material and arranged in electrical communication with the electrical terminals of a power source. Hence, the arrangement of the conductor plate 50, the spring 55, and the pin-docking plate 60 completes the electrical supply function and supplies electrical current from the power source to the tube lamp 100, 101, 102 of which its pin or pins are in contact with or engaged to the pin-docking plate 60.

[0015] The U-shaped end 56 formed at the last coil of the spring 55 allows the end of the spring 55 to be still able to couple to the pair of prongs 42 while also maximizing contact of the end of spring 55 to the conductor plate 50 to ensure electrical connectivity. In another embodiment, the spring 55 (i.e., the coil of the spring) is configured as a slightly tapered shape where the end of the spring 55, which is in contact with the pin-docking plate 60, provides a somewhat more extensive contact than the opposing end of the coil of the spring 55 which is in contact with the conductor plate 50 for a sturdier engagement with the pin-docking plate 60. Please see Figs 7 and 8.

[0016] Also, as shown in Figures 7 and 8, the larger end of the spring 55 is arranged to come into contact with the back of the pin-docking plate 60. More specifically, the last of the coil of the larger end of the spring 55 is in contact with the back of the pin-docking plate 60. In an exemplary arrangement between the spring 55 and the pin-docking plate 60, the last of the coil of the spring 55 rests between the center pin-docking site 65 and one or more pairs of peripheral pin-docking sites 70 surrounding the center pin-docking site 65 of the pin-docking plate 60.

[0017] Figs. 8 and 9 show an embodiment of a pin-docking plate 60 of the invention. The pindocking plate 60 comprises multiple pin-docking sites 65, 70. Each docking site 65, 70 is configured to receive a pin or pins of a specific type of tube lamp 100 101, 102, including a single-pin Fa8 or a bi-pin G5 tube lamp. For example, in an embodiment, the center pin-docking site 65 is formed as an inward dome-shaped or semi-circular shape to correspond to the shape of the end of a pin of a Fa8 tube lamp 100. As such, once the end of the pin of the Fa8 tube lamp comes into contact with the surface of the dome-shaped or semi-circular-shaped pin-docking site, i.e., center pin-docking site 65 it allows flow of the electrical current to the tube lamp 100. Hence, the center pin-docking site 65 is structured to be compatible with a Fa8 tube lamp 100. Furthermore, the center pin-docking site 65 is dimensioned such that the depth and width of the dome-shaped or the semi-circular shape also correspond to the length and distance between the two pins of a bi-pins G5 tube lamp 101 so that the center pin-docking site 65 is also compatible with a G5 tube lamp 101 as well. A Fa8 tube lamp 100 and a G5 tube lamp 101 may be fittedinterchangeably with the center pin-docking site 65. The center pin-docking site 65 may optionally be prepared with or without small holes 66, as shown in Figs 3 and Fig 4, respectively. The small holes provide a sense of guidance for positioning the pin(s) of the tube lamp therein, as well as creating friction between the pins and the center pin-docking site 65. The fact that the center pin-docking site 65 is prepared with a dome-shaped or semi-circular shape and compatible with a Fa8 or a G5 tube lamp 100 or 101, it allows 360 degrees rotation of the tube lamp 100, 101 while the pin or pins of the tube lamp 100, 101 remain in contact with the pin-docking site 65. Accordingly, this configuration is advantageous, particularly for a tube lamp 100, 101 with a unidirectional light if projecting the light to a specific direction or angle. However, it will be appreciated by a skilled person in the art that other shapes of the center pin-docking site 65 are possible.

[0018] Figs. 3, 4, 8, and 9 show different views and embodiments of the pin-docking plate 60 of the invention. These figures illustrate that the pin-docking plate 60 comprises a center pindocking site 65 and one or more pairs of peripheral pin-docking sites 70 surrounding the center pin-docking site 65. More specifically, as shown in Fig. 9, the pin-docking plate 60 comprises a center pin-docking site 65, which is compatible with receiving pins or pins of a Fa8 or a G5 tube lamp 100, 101. As described above, the pin-docking plate 60 also further comprises one or more pairs of peripheral pin-docking sites 70, wherein any one pair of the peripheral pin-docking sites 70 is designated to receive an end of a bi-pins tube lamp, for example, a G13 tube lamp 102. Accordingly, the lamp holder 20, according to the present invention, is compatible interchangeably with any one of Fa8, G5, or G13 tube lamp 100, 101, or 102 at any one time. The user may, as required, switch to a different type of tube lamp among Fa8, G5, and G13 without purchasing a new set or replace the existing set with a new set of lamp holders compatible with only one specific type of tube lamp.

[0019] Referring back to Figs. 3, 4, and 8 show a perspective and a back perspective view of an embodiment of a pin-cap 80 of a lamp holder 20 according to the present invention. According to an embodiment of the pin-cap 80, as shown, the pin-cap 80 is formed into a shape corresponding to the shape and configuration of the housing 25 of the lamp holder 20. Thereby, the housing 25 can accommodate the pin-cap 80 configured to move between an inward or outward position with respect to the housing 25 due to the exertion force of the spring 55 upon pressing or releasing pin-cap 80. It will be appreciated by a skilled person in the art that the shape of the housing 25 and the pin-cap 80 may be modified as other geometrical shapes, including a rectangular, a square, among others, as long as the housing 25 can accommodate the pin-cap 80arranged to it and configured to move between inward and outward positions in relation to the housing 25, due to exertion force of the spring 55 upon pressing or releasing of the pin-cap 80. In the exemplary embodiment shown herein, the pin-cap 80 is formed into a substantially cylindrical shape with a closed front end. The cylindrical shape of the pin-cap 80 corresponds to the arch section of the housing 25. On the inside wall of the pin-cap 80, i.e., the inside of the cylindrical body of the pin-cap 80, a plurality of shoulders 81, preferably two to four shoulders 81 , are integrally formed and distributed on the inside wall of the pin-cap 80, preferably, leveling with each other. In an assembled state, the pin-docking plate 60 rests on said shoulders 81 and said shoulders 81 abut against the pin-docking plate 60 due to the exertion force of the spring 55. The shoulders 81 also limit movement of the pin-docking plate 60 as the spring 55, which is in contact with the pin-docking plate 60, is being pressed or released.

[0020] Further, the pin-cap 80 and the housing 25 are prepared with corresponding stopper elements to secure the pin-cap 80 in place, restricting the pin-cap 80 from dislodging from the housing 25 due to the exertion force of the spring 55. As an example, the embodiment of the pincap 80 and the housing 25, as shown, are prepared with corresponding male and female stopper elements 82, 82”. In a released state of the spring 25, the male and female stopper elements 82, 82” come into engage or latch onto each other restricting the pin-cap 80 from dislodging entirely out of the housing 25 due to the exertion force of the spring 55. The stopper elements 82, 82” may be formed at more than one corresponding position on the pin-cap 80 and the housing 25. Furthermore, corresponding stopper elements may also be formed on the pin-cap 80 and a front cover 45 of the housing 25, providing supplementary means to secure the pin-cap 80 in place and restricting the pin-cap 80 from dislodging entirely out of the housing 25. For example, the pincap 80 may be provided with a pair of downward flanges 83, one on each side of the cylindrical of the pin-cap 80, wherein said flanges 83 engage with the front cover 45, and movement of the pin-cap 80 is thus further restricted. That is, as the front cover 45 is fixedly secured to the housing 25, the front cover 45, at the positions corresponding to the positions of the flanges 83 blocks the pin-cap 80 from moving forward beyond the flanges 83 and hence restricts the pin-cap 80 from dislodging out of the housing 25.

[0021] Referring back to the configuration of the pin-cap 80. As mentioned, the pin-cap 80 is formed into a substantially cylindrical shape with a closed front end. The closed front end of the pin-cap 80 is prepared with through holes 84, 85 wherein the number, shape, size, and position of the through holes 84, 85 correspond to the number, shape, size, and position of the pin-docking sites 65, 70 on the pin-docking plate 60. In an assembled state, the through holes 84, 85 alignwith the pin-docking sites 65, 70 on the pin-docking plate 60. More specifically, the through hole 84 in the center of the pin-cap 80 aligns with the center pin-docking site 65 on the pin-docking plate 60, and each surrounding through hole 85 aligns with each of the peripheral pin-docking sites 70. Hence, a pin or pins of a tube lamp 100, 101, 102 may be inserted through the through holes 84, 85 and come into contact with the pin-docking plate 60, completing the electrical connectivity between the lamp holder 20 and the tube lamp 100, 101, 102.

[0022] In an embedment, the pin-cap 80 is preferably prepared with one or more pin-guides 86, 86” to facilitate insertion and guide a pin or pins of the tube lamp 100, 101, 102 into the through holes 84, 85 to eventually reach and come into contact with the pin-docking plate 60. For example, pin guide 86” is for guiding the insertion of a pin of Fa8 tube lamp 100 or pins of G5 tube lamp 101, whereas pin guide 86 is for guiding the insertion of G13 tube lamp 102.

[0023] The front cover 45, as shown in Figs.1, 3, 4, and 5 are configured to be fitted to housing 25 of the lamp holder 20, specifically to the lower section of housing 25. In an example embodiment, the lower section of the front cover 45 is dimensioned to correspond to the configuration of the lower section of housing 25. The front cover 45 encloses the relevant elements / parts housed within Housing 25 for functional, safety, and aesthetic purposes.

[0024] The top section of the front cover 45 is dimensioned to correspond to the shape of the pin-cap 80 so that it does not obstruct the movement of the pin-cap 80 as the pin-cap 80 is being manipulated to move inward or outward as the pin-cap 80 is being pressed or released. As described above, in an embodiment, the pin-cap 80 may be provided with a pair of downward flanges 83, one on each side of the cylindrical of the pin-cap 80, and said flanges 83 engage with the front cover 45 to supplementary restrict movement of the pin-cap 80 from being dislodged out of the housing 25. Therefore, the front cover 45 at the positions corresponding to the positions of the flanges 83 on pin-cap 80 may be prepared with a corresponding means or element to engage each of the flanges 83 on the pin-cap 80 and hence achieving the function of restricting the pin-cap 80 from dislodging out of the housing 25. In the embodiment of the front cover 45, as shown in Figs. 3 and 4, the top ends (left and right) of the front cover 45 engage to each respective flange 83 on the pin-cap 80. Further, the front cover 45, at the lower section, is equipped with a pair of guide holes 46. The guide holes 46 receive electrical terminals inserted thereto to facilitate electrical connection to the conductor plate 50. Furthermore, the front cover 45 and the housing 25 are prepared with corresponding fastening means 47 to secure the front cover 45 to the housing 25. In an embodiment, said fastening means 47 is realized as a pair of screws and respective screw holes and screw sockets. The screws fasten the front cover 45 tohousing 25 via respective screw holes on the front cover 45 and screw sockets on the back wall 30 of housing 25. Accordingly, a pair of corresponding screw holes are prepared on the front cover 45, and a pair of corresponding screw sockets are prepared at corresponding positions on the housing 25, more specifically, on the back wall 30, such that it allows fastening of the front cover 45 to the housing 25. It will be appreciated by a skilled person in the art that different forms of fastening means or modifications thereof can be easily envisaged and achieved for the same purpose and function. As shown in an alternative embodiment of the lamp holder 20 according to the invention illustrated in Figs. 10A and 10B, the fastening means 47 for securing the front cover 45 to the housing 25 is realized as a “snap-fit” locking mechanism in which a respective resilient flange 47 A is prepared on each of the left and right sides of the front cover 45. The housing 25 at corresponding positions on each left and right side of the side wall 35 are arranged with a passage 47B, which accepts the clasping of the flange 47A thereto and thereby locks the front cover 45 to the housing 25.

[0025] Figs. 10A and 10B also represent an alternative embodiment of the lamp holder 20 according to the present invention. In this embodiment, other components and parts are essentially the same as the above-discussed embodiment, except with an alternative configuration of the housing 25. In addition to the alternative configuration of the fastening means 47, i.e., the snap-fit mechanism, this embodiment also introduces an alternative configuration of the mating element 87 on housing 25. In this embodiment, the mating element 87 may be in the form of a protrusion on the underside of the bottom wall 40, which, as discussed in previous embodiments, the mating element 87 facilitates securing the lamp holder 20 to a lighting fixture (not shown).

[0026] While the invention has been described as an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made, and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to the invention without departing from the essential scope thereof. Therefore, it is intended that the invention is not limited to the embodiment disclosed as the best mode contemplated for carrying out this invention but that it will include all embodiments falling within the scope of the appended claims.

Claims

CLAIMS1. An LED tube lamp holder (20) comprising:- a back wall (30), a side wall (35), and a bottom wall (40) arranged to define a housing (25);- a pin-cap (50) secured to the housing (25) and movable between an inward or outward position relative to the housing (25) upon pressing or releasing, and -a front cover (45) fastened to the housing (25); wherein the housing (25) houses a conductor plate (50), a spring (55), and a pin-docking plate (60) formed from electrically conductive materials and arranged in electrical communication with electrical terminals of a power source to supply electricity to a LED tube lamp (100, 101, 102) fitted to the lamp holder (20); characterized in that the pin-docking plate (60) comprises multiple pin-docking sites (65, 70) wherein one or more pin-docking sites among the multiple pin-docking sites (65, 70) are configured to receive one or more pins of a corresponding type of the tube lamp (100, 101, 102) via corresponding through holes (84, 85) on the pin-cap (80) to come into contact with said pin-docking sites (65, 70), permitting interchangeably fitting of different types of LED tube lamp (100, 101, 102) onto one face of the lamp holder (20).

2. The lamp holder (20) according to claim 1, wherein the conductor plate (50) is dimensioned into a substantially L- shaped and arranged to fit into a slot (41) formed on the bottom wall (40) of the housing (25), the conductor plate (50) comprising:- a seating portion (51) defining an opening (52) configured to allow insertion onto a projection (36) disposed on the back wall (35) of the housing (25);-a body portion (54) extending from the seating portion (51) arranged between a pair of prongs (42) located on the back wall (30) of the housing (25); and-a downward bend (53) formed on the body portion (54) of the conductor plate (50) configured to engage to an end of the spring (55); wherein the conductor plate (50) is arranged relative to the slot (41), the projection (36), and the prongs (42) on the back wall (35) of the housing (25) so as to secure the conductor plate (50) to the housing (25) and limit movement or displacement of the conductor plate (50).

3. The lamp holder (20) according to claim 1 or 2, wherein the spring (55) is realized in the form of a spring coil of which an end of the spring (55) is configured to couple (bestride) to the pair prongs (42) on the back wall (30) of the housing (25), and an opposing end of the spring (55) is configured to engaged to the pin-docking plate (60); andwherein said opposing end of the spring (55) facing the conductor plate (50) engages to the downward bend (53) of the conductor plate (50).

4. The lamp holder (20) according to claim 3, wherein the spring (55) at its last coil of an end facing the conductor defines a U-shaped end (56) arranged between the pair of prongs (42) and comes into contact with the conductor plate (50).

5. The lamp holder (20) according to claim 1, wherein the pin-docking plate (60) comprises: a center pin-docking site (65); and one or more pair of peripheral pin-docking sites (70) surrounding the center pin-docking site (65); wherein the center pin-docking site (65) and one of said one or more pairs of the peripheral pin-docking sites (70) is configured to interchangeably receive a pin or pins of a single pin or a bi-pin LED tube lamp (100, 101, 102)6. The lamp holder (20) according to claim 5, wherein the center pin-docking site (65) is configured to interchangeably receive a pin of a Fa8 LED tube lamp (100) or pins a G5 bi-pin LED tube lamp (101); and wherein any one corresponding pair of said one or more pairs of peripheral pin-docking sites (70) is configured to interchangeably receive a G13 bi-pin LED tube lamp (102).

7. The lamp holder (20) according to claim 1, wherein the pin-cap (50) is formed into a shape corresponding to the shape of the housing (25) wherein the pin-cap (50) and the housing (25) comprise corresponding stopper elements (82, 82”) configured to restrict the pin-cap (80) from dislodging out of the housing (25); the pin-cap (50) comprises:-a closed front end defining a plurality of through holes (84, 85), wherein the number, shape, size, and position of the through holes (84, 85) correspond to the number, shape, size, and position of the pin-docking sites (65, 70) on the pindocking plate (60); and wherein in an assembled state, said through holes (84, 85) on the pin-cap (50) align to said pin-docking sites (65, 70) on the pin-docking plate (60); and-a plurality of shoulders (81) integrally formed and distributed on the inside wall of the pin-cap (80) configured to engage to the pin-docking plate (60) whereby the shoulders (81) secure the pin-docking plate (60) in place limiting displacement of the pin-docking plate (60) due to the exertion force of the spring (55) acts upon the pin-docking plate (60) as the spring (55) is pressed or released;8. The lamp holder (20) according to claim 7, wherein the pin-cap (80) is optionally comprising one or more pin-guides (86, 86”) to facilitate insertion of a pin or pins of the LED tube lamp (100, 101 , 102) through to the pin-docking sites (65, 70) on the pin-docking plate (60).

9. The lamp holder (20) according to claim 8, wherein the pin-cap (80) further comprises a pair of downward flanges (83) configured to engage with the front cover (45) fastened to the housing and block the pin-cap (80) from moving forward beyond the flanges (83), and thereby restrict the pin-cap (80) from dislodging out of the housing (25).

10. The lamp holder (20) according to claim 1 , wherein the front cover (45) is fastened to the housing via a fastening means (47), the front cover comprises a pair of guide holes (46) configured to receive electrical terminals inserted there through to facilitate electrical connection to the conductor plate (50).

11. The lamp holder (20) according to claim 1 , wherein the back wall 30 optionally comprises a pair of guides (43) directs the body portion (54) of the conductor plate (50) towards the pair of prongs (42) located above the guides (43).

12. The lamp holder (20) according to claim 1, wherein the spring (55) is configured with a tapered shape where the spring coil at the end of the spring (55), which is in contact with the pindocking plate (60) is larger than the spring coil at the opposing end of the spring (55) which is in contact with the conductor plate (50).

13. The lamp holder (20) according to claim 1 , wherein the lamp holder (20) defines a mating element (87) configured to facilitate securing of the lamp holder (20) to an LED lighting fixture.

14. The lamp holder (20) according to claim 10, wherein the fastening means (47) is a screw means or a snap-fit locking means.

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