CN103148391A - LED lamp capable of directly replacing ballast fluorescent tube, and device of LED lamp - Google Patents
LED lamp capable of directly replacing ballast fluorescent tube, and device of LED lamp Download PDFInfo
- Publication number
- CN103148391A CN103148391A CN2013100779533A CN201310077953A CN103148391A CN 103148391 A CN103148391 A CN 103148391A CN 2013100779533 A CN2013100779533 A CN 2013100779533A CN 201310077953 A CN201310077953 A CN 201310077953A CN 103148391 A CN103148391 A CN 103148391A
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- Prior art keywords
- fluorescent tube
- commutation diode
- ballast
- light fixture
- led light
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/357—Driver circuits specially adapted for retrofit LED light sources
- H05B45/3578—Emulating the electrical or functional characteristics of discharge lamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an LED (Light-emitting Diode) lamp capable of directly replacing a ballast fluorescent tube, and a device of the LED lamp, and belongs to the technical field of illumination devices. The device of the LED lamp mainly comprises a ballast, a starter and the LED lamp, wherein the LED lamp comprises a rectifying circuit, a driving source power conversion circuit, and an LED illuminant; one end of the rectifying circuit is electrically connected with the driving source power conversion circuit; the other end of the driving source power conversion circuit is electrically connected with the LED illuminant; and the LED lamp is directly mounted on a fluorescent tube bracket of the replaced ballast fluorescent tube. According to the LED lamp and the device, the fluorescent tube can be directly replaced by an LED lamp tube under the condition that a bracket and lines of the traditional fluorescent tube are not changed; in addition, the cost is lowered greatly; adverse situations due to the fact that the fluorescent tube of the traditional ballast is mounted again or incorrectly are avoided; and a structure and a production technology are simpler, so that the production efficiency can be improved greatly.
Description
Technical field
The present invention relates to the lighting device technical field, relate in particular to a kind of LED light fixture and device thereof of direct replacement rectifier fluorescent tube.
Background technology
Luminous efficiency is high, power savings good because LED has, and the characteristics such as pollution-free, life-span is long, obtains the active support of the government on illuminating industry is used; The related work that substitutes the traditional lighting lamp with the LED illuminating lamp is simultaneously also constantly carrying out.
The wiring diagram of the wiring diagram of traditional Inductive ballast fluorescent tube that reference is shown in Figure 1 and conventional electronic ballast fluorescent tube shown in Figure 2, it mainly is comprised of fluorescent tube, ballast and three parts of starter, all have the advantages such as circuit structure is simple, cost is lower, but the start-up time of Inductive ballast fluorescent tube is long, starter need to be beated and just can be lighted fluorescent tube several times, and more difficult driving under the low-voltage condition.The fluorescent tube of inductance/electric ballast fluorescent tube contains the poisonous and harmful heavy metallic materials such as a small amount of liquid mercury, mercury vapour, is difficult to effective withdrawal after fluorescent lamp is discarded, leak not only contaminated environment but also threaten health of mercury, mercury.
Have various deficiencies in order to solve the ballast fluorescent tube, therefore along with the technical development of LED illuminating lamp, the LED fluorescent tube also progressively replaces traditional ballast fluorescent tube.The wiring diagram (as shown in Figure 3) that replaces in the market the LED fluorescent tube of traditional ballast fluorescent tube, installation process is general first with the starter on fluorescent tube support (electric ballast without) removal, then the Inductive ballast in support/electric ballast is removed, then two wires removing are carried out short circuit, bandage last mounted LED lamp pipe with electrician's insulating tape.Simultaneously, generally be loaded on common fluorescent tube for the mistake of the LED tube stand after preventing from reequiping, the bad phenomenon such as cause burning out, do not work, also visibility point is labelled on the LED tube stand, and indicates " this support is only applicable to the mounted LED lamp pipe ".
Above-mentioned LED fluorescent tube replaces in inductance/electric ballast fluorescent tube process, due to the needs change mode of connection, needs the parts such as removal ballast, starter, and generally the user is ignorant of Self-operating, needs professional electrician to change.On the one hand, if user's self-changeable is installed, connect in careless situation instead, can cause bad phenomenon such as burning line; Inductance/electric ballast fluorescent tube perhaps is installed again, is had bad phenomenon.On the other hand, if please professional electrician change installation, can corresponding payment labour take, thereby improve replacement cost, cause cost higher.
Summary of the invention
In order to solve above-mentioned existing technical deficiency and defective, the object of the present invention is to provide a kind of LED light fixture and device thereof of direct replacement rectifier fluorescent tube, this LED light fixture is directly installed on the support of conventional rectifier fluorescent tube, need not change any circuit and device, install simply, reduce costs.
The objective of the invention is by realizing by the following technical solutions:
A kind of LED light fixture and device thereof of direct replacement ballast fluorescent tube, its device mainly comprises ballast, starter and LED light fixture, described LED light fixture comprises rectification circuit, driving power circuit for power conversion and LED illuminator, one end of described rectification circuit is electrically connected to described driving power circuit for power conversion, and the other end of described driving power circuit for power conversion is electrically connected to described LED illuminator; Described LED light fixture be directly installed on be replaced ballast fluorescent tube under fluorescent tube support on.
As the preferred technical solution of the present invention, described rectification circuit is comprised of 2 rectifying circuits and 3 fuses, and described rectifying circuit is comprised of 4 commutation diodes; An end of the first fuse connects the tie point of the first commutation diode negative electrode and the second commutation diode anode specifically, and the other end consists of the first binding post; One end of the second fuse connects the tie point of the 5th commutation diode negative electrode and the 6th commutation diode anode, and the other end consists of the 4th binding post; One end of the 3rd fuse connects the tie point of the 7th commutation diode negative electrode and the 8th commutation diode anode, and the other end consists of the 3rd binding post; The tie point of the 3rd commutation diode negative electrode and the 4th commutation diode anode consists of the second binding post; First and third, five are in the same place with the anodic bonding of seven commutation diodes, consist of the negative pole of rectification circuit output; The second, the negative electrode of four, six and eight commutation diodes links together, and consists of the positive pole of rectification circuit output.
As the preferred technical solution of the present invention, described the first binding post, the second binding post, the 3rd binding post and the 4th binding post consist of four terminals of described LED light fixture.
As the preferred technical solution of the present invention, described LED illuminator is that a plurality of LED lamps are electrically connected to formation.
As the preferred technical solution of the present invention, the described fluorescent tube that is replaced ballast comprises the fluorescent tube of electric ballast and the fluorescent tube of Inductive ballast.
As the preferred technical solution of the present invention, described LED light fixture is the LED fluorescent tube.
In sum, LED light fixture and the device thereof of a kind of direct replacement ballast fluorescent tube provided by the present invention have:
1, the support of conventional fluorescent pipe is not made any modification, can directly fluorescent tube be changed into the LED fluorescent tube.
2, do not need the circuit of conventional fluorescent pipe is done any transformation, reduce costs.
3, at present inductance/electric ballast fluorescent tube also in more use, when the user again or wrong when the conventional fluorescent pipe is installed, can not burn out fluorescent tube.
4, structure and production technology are simpler, can greatly enhance productivity, and reduce costs.
Description of drawings
Fig. 1 is the wiring diagram of traditional Inductive ballast fluorescent tube.
Fig. 2 is the wiring diagram of conventional electronic ballast fluorescent tube.
Fig. 3 is the LED fluorescent tube wiring diagram that tradition replaces inductance/electric ballast fluorescent tube.
Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 are 6 kinds of LED light wiring figure that directly replace the Inductive ballast fluorescent tube of the embodiment of the present invention.
Figure 10 is the structural representation of the LED light fixture in Fig. 4 to Fig. 9 dotted line frame of the present invention.
Description of reference numerals: L1, the first binding post, N1, the second binding post, L2, the 3rd binding post, N2, the 4th binding post, F1, the first fuse, F2, the second fuse, F3 the 3rd fuse, D1, the first commutation diode, D2, the second commutation diode, D3, the 3rd commutation diode, D4, the 4th commutation diode, D5, the 5th commutation diode, D6, the 6th commutation diode, D7, the 7th commutation diode, D8, the 8th commutation diode.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
With reference to accompanying drawing 4 to shown in accompanying drawing 9, the invention provides a kind of LED light fixture and device thereof of direct replacement ballast fluorescent tube, its device mainly comprises ballast, starter and LED light fixture, described LED light fixture comprises rectification circuit, driving power circuit for power conversion and LED illuminator, one end of described rectification circuit is electrically connected to described driving power circuit for power conversion, and the other end of described driving power circuit for power conversion is electrically connected to described LED illuminator.In an embodiment of the present invention, described LED light fixture is the LED fluorescent tube, support to the conventional fluorescent pipe is not made any modification, does not need the circuit of conventional fluorescent pipe is done any transformation yet, can be directly installed on be replaced ballast fluorescent tube under fluorescent tube support on.
In the present invention, the described fluorescent tube that is replaced ballast comprises the fluorescent tube of electric ballast and the fluorescent tube of Inductive ballast.
Wherein, the described LED illuminator of the embodiment of the present invention is that a plurality of LED lamps are electrically connected to formation, its connected mode can adopt series and parallel connections to interconnect, form the LED illuminator, and the positive pole of LED illuminator and negative pole are electrically connected to respectively positive pole, the negative pole of described driving power circuit for power conversion output.
In embodiments of the present invention, described rectification circuit is comprised of 2 rectifying circuits and 3 fuses, and described rectifying circuit is comprised of 4 commutation diodes.An end of the first fuse (F1) connects the tie point of the first commutation diode (D1) negative electrode and the second commutation diode (D2) anode specifically, and the other end consists of the first binding post (L1).One end of the second fuse (F2) connects the tie point of the 5th commutation diode (D5) negative electrode and the 6th commutation diode (D6) anode, and the other end consists of the 4th binding post (N2).One end of the 3rd fuse (F3) connects the tie point of the 7th commutation diode (D7) negative electrode and the 8th commutation diode (D8) anode, and the other end consists of the 3rd binding post (L2).The tie point of the 3rd commutation diode (D3) negative electrode and the 4th commutation diode (D4) anode consists of the second binding post (N1).First and third, five are in the same place with the anodic bonding of seven commutation diodes (D1, D3, D5 and D7), consist of the negative pole of rectification circuit output, and this negative electricity connects the negative pole of described driving power circuit for power conversion input; Link together with the negative electrode of second, four, six and eight commutation diodes (D2, D4, D6 and D8), consist of the positive pole of rectification circuit output, this positive pole is electrically connected to the positive pole of described driving power circuit for power conversion input.
Wherein, described the first binding post (L1), the second binding post (N1), the 3rd binding post (L2) and the 4th binding post (N2) consist of four terminals of described LED light fixture.In an embodiment of the present invention, described LED light fixture is the LED fluorescent tube, i.e. four four copper pins that terminal is the LED fluorescent tube, and two terminals that civil power L, N line can connect arbitrarily wherein can be powered.Because how no matter four binding posts at LED light fixture two ends connect civil power can work, when the LED light fixture was replaced the fluorescent tube of ballast, the wiring of former support can not affect circuit; Inner rectification circuit, to the starter reverse isolation, do not have electric current and pass through starter simultaneously.
The work that in embodiment, the connected mode of 6 kinds of binding posts and civil power and rectification circuit are concrete detailed is as follows:
With reference to Fig. 4 and shown in Figure 10, when line voltage is added in the first binding post (L1) and the second binding post (N1), the positive half cycle of line voltage is through the second commutation diode (D2), the rectification of the 3rd commutation diode (D3) forward, and the first commutation diode (D1), the 4th commutation diode (D4), the 6th commutation diode (D6), the 8th commutation diode (D8) are oppositely.Negative half period is through the 4th commutation diode (D4), the rectification of the first commutation diode (D1) forward, and the second commutation diode (D2), the 3rd commutation diode (D3), the 6th commutation diode (D6), the 8th commutation diode (D8) are oppositely.
With reference to Fig. 5 and shown in Figure 10, when line voltage is added in the 3rd binding post (L2) and the 4th binding post (N2), the positive half cycle of line voltage is through the 6th commutation diode (D6), the rectification of the 7th commutation diode (D7) forward, and the second commutation diode (D2), the 4th commutation diode (D4), the 5th commutation diode (D5), the 8th commutation diode (D8) are oppositely.Negative half period is through the 5th commutation diode (D5), the rectification of the 8th commutation diode (D8) forward, and the second commutation diode (D2), the 4th commutation diode (D4), the 6th commutation diode (D6), the 7th commutation diode (D7) are oppositely.
With reference to Fig. 6 and shown in Figure 10, when line voltage is added in the first binding post (L1) and the 3rd binding post (L2), the positive half cycle of line voltage is through the second commutation diode (D2), the rectification of the 7th commutation diode (D7) forward, and the first commutation diode (D1), the 4th commutation diode (D4), the 6th commutation diode (D6), the 8th commutation diode (D8) are oppositely.Negative half period is through the first commutation diode (D1), the rectification of the 8th commutation diode (D8) forward, and the second commutation diode (D2), the 4th commutation diode (D4), the 6th commutation diode (D6), the 7th commutation diode (D7) are oppositely.
With reference to Fig. 7 and shown in Figure 10, when line voltage is added in the first binding post (L1) and the 4th binding post (N2), the positive half cycle of line voltage is through the second commutation diode (D2), the rectification of the 5th commutation diode (D5) forward, and the first commutation diode (D1), the 4th commutation diode (D4), the 6th commutation diode (D6), the 8th commutation diode (D8) are oppositely.Negative half period is through the first commutation diode (D1), the rectification of the 6th commutation diode (D6) forward, and the second commutation diode (D2), the 4th commutation diode (D4), the 5th commutation diode (D5), the 8th commutation diode (D8) are oppositely.
With reference to Fig. 8 and shown in Figure 10, when line voltage is added in the second binding post (N1) and the 3rd binding post (L2), the positive half cycle of line voltage is through the 4th commutation diode (D4), the rectification of the 7th commutation diode (D7) forward, and the 3rd commutation diode (D3), the second commutation diode (D2), the 6th commutation diode (D6), the 8th commutation diode (D8) are oppositely.Negative half period is through the 6th commutation diode (D6), the rectification of the first commutation diode (D1) forward, and the 6th commutation diode (D6), the 7th commutation diode (D7), the second commutation diode (D2), the 4th commutation diode (D4) are oppositely.
With reference to Fig. 9 and shown in Figure 10, when line voltage is added in the second binding post (N1) and the 4th binding post (N2), the positive half cycle of line voltage is through the 4th commutation diode (D4), the rectification of the 5th commutation diode (D5) forward, and the second commutation diode (D2), the 3rd commutation diode (D3), the 6th commutation diode (D6), the 8th commutation diode (D8) are oppositely.Negative half period is through the 6th commutation diode (D6), the rectification of the 3rd commutation diode (D3) forward, and the 5th commutation diode (D5), the 8th commutation diode (D8), the second commutation diode (D2), the 4th commutation diode (D4) are oppositely.
The above embodiment has only expressed the preferred embodiment that the present invention replaces the inductor rectifier fluorescent tube, and is the built-in driving of rectification circuit, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention and embodiment.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some improvement, such as external driving of rectification circuit etc., these all belong to protection scope of the present invention.
Claims (6)
1. LED light fixture and device thereof of directly replacing the ballast fluorescent tube, its device mainly comprises ballast, starter and LED light fixture, it is characterized in that: described LED light fixture comprises rectification circuit, driving power circuit for power conversion and LED illuminator, one end of described rectification circuit is electrically connected to described driving power circuit for power conversion, and the other end of described driving power circuit for power conversion is electrically connected to described LED illuminator; Described LED light fixture be directly installed on be replaced ballast fluorescent tube under fluorescent tube support on.
2. the LED light fixture of direct replacement ballast fluorescent tube according to claim 1, it is characterized in that: described rectification circuit is comprised of 2 rectifying circuits and 3 fuses, and described rectifying circuit is comprised of 4 commutation diodes; An end of the first fuse connects the tie point of the first commutation diode negative electrode and the second commutation diode anode specifically, and the other end consists of the first binding post; One end of the second fuse connects the tie point of the 5th commutation diode negative electrode and the 6th commutation diode anode, and the other end consists of the 4th binding post; One end of the 3rd fuse connects the tie point of the 7th commutation diode negative electrode and the 8th commutation diode anode, and the other end consists of the 3rd binding post; The tie point of the 3rd commutation diode negative electrode and the 4th commutation diode anode consists of the second binding post; First and third, five are in the same place with the anodic bonding of seven commutation diodes, consist of the negative pole of rectification circuit output; The second, the negative electrode of four, six and eight commutation diodes links together, and consists of the positive pole of rectification circuit output.
3. the LED light fixture of direct replacement ballast fluorescent tube according to claim 2, is characterized in that: four terminals of described the first binding post, the second binding post, the 3rd binding post and the described LED light fixture of the 4th binding post formation.
4. the LED light fixture of direct replacement ballast fluorescent tube according to claim 1 is characterized in that: described LED illuminator is that a plurality of LED lamps are electrically connected to and form.
5. the LED light fixture of direct replacement ballast fluorescent tube according to claim 1, it is characterized in that: the described fluorescent tube that is replaced ballast comprises the fluorescent tube of electric ballast and the fluorescent tube of Inductive ballast.
6. the LED light fixture of direct replacement ballast fluorescent tube according to claim 1, it is characterized in that: described LED light fixture is the LED fluorescent tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100779533A CN103148391A (en) | 2013-03-12 | 2013-03-12 | LED lamp capable of directly replacing ballast fluorescent tube, and device of LED lamp |
| PCT/CN2013/077788 WO2014139235A1 (en) | 2013-03-12 | 2013-06-24 | Led lamp capable of directly replacing ballast fluorescent tube and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100779533A CN103148391A (en) | 2013-03-12 | 2013-03-12 | LED lamp capable of directly replacing ballast fluorescent tube, and device of LED lamp |
Publications (1)
| Publication Number | Publication Date |
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| CN103148391A true CN103148391A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100779533A Pending CN103148391A (en) | 2013-03-12 | 2013-03-12 | LED lamp capable of directly replacing ballast fluorescent tube, and device of LED lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103148391A (en) |
| WO (1) | WO2014139235A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014139235A1 (en) * | 2013-03-12 | 2014-09-18 | 深圳市聚作照明股份有限公司 | Led lamp capable of directly replacing ballast fluorescent tube and device thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717776A (en) * | 2015-01-04 | 2015-06-17 | 赵立地 | LED lamp tube replacing circuit for electronic ballast |
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| US20100244696A1 (en) * | 2007-11-13 | 2010-09-30 | Chul Kim | Apparatus for Connecting LED Lamps Into Lighting Instruments of a Fluorescent Lamp |
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| CN203068256U (en) * | 2013-03-12 | 2013-07-17 | 深圳市聚作照明股份有限公司 | LED (light emitting diode) lamp and LED device for directly replacing fluorescent tube with ballast |
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| US20060193131A1 (en) * | 2005-02-28 | 2006-08-31 | Mcgrath William R | Circuit devices which include light emitting diodes, assemblies which include such circuit devices, and methods for directly replacing fluorescent tubes |
| CN101893218A (en) * | 2010-07-13 | 2010-11-24 | 深圳市金流明光电技术有限公司 | LED tube and circuit thereof |
| CN102155642B (en) * | 2010-12-07 | 2013-02-27 | 刘昌贵 | LED (light emitting diode) daylight lamp and connecting circuit thereof |
| CN202195326U (en) * | 2011-09-22 | 2012-04-18 | 孙奕斌 | LED (light-emitting diode) lamp tube |
| CN202713699U (en) * | 2012-05-30 | 2013-01-30 | 深圳市丽晶光电科技股份有限公司 | LED fluorescent tube drive circuit and LED fluorescent tube |
| CN103148391A (en) * | 2013-03-12 | 2013-06-12 | 深圳市聚作照明股份有限公司 | LED lamp capable of directly replacing ballast fluorescent tube, and device of LED lamp |
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2013
- 2013-03-12 CN CN2013100779533A patent/CN103148391A/en active Pending
- 2013-06-24 WO PCT/CN2013/077788 patent/WO2014139235A1/en active Application Filing
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| US20100244696A1 (en) * | 2007-11-13 | 2010-09-30 | Chul Kim | Apparatus for Connecting LED Lamps Into Lighting Instruments of a Fluorescent Lamp |
| CN202353853U (en) * | 2011-10-17 | 2012-07-25 | 深圳市家佳明光电科技有限公司 | LED (light-emitting diode) tube circuit compatible with traditional lamp base |
| CN202425094U (en) * | 2011-11-24 | 2012-09-05 | 深圳市浩原义光电科技有限公司 | Rectifier bridge power supply error correcting circuit based on LED lamp tube |
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| WO2014139235A1 (en) * | 2013-03-12 | 2014-09-18 | 深圳市聚作照明股份有限公司 | Led lamp capable of directly replacing ballast fluorescent tube and device thereof |
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| WO2014139235A1 (en) | 2014-09-18 |
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Application publication date: 20130612 |