Patents-Review.com
ClassID:

233167 ⎘

H05B33/0845 - CPC Classification

Classification description:

Sub-classes:
Recent Application in this class:
#1
20220130321
2022-04-28

Multi positional attachable handle with integrated backlight illumination <> system

 #2
20210136885
2021-05-06

Dimmer with a power supply circuit

 #3
20210100079
2021-04-01

LED LUMINAIRE MULTIPLEXING WITH CONSTANT CURRENT DRIVER

 #4
20210076463
2021-03-11

Control method and driving circuit for light emitting diode

 #5
20210037621
2021-02-04

Backlit display dimming system and method

 #6
20210022216
2021-01-21

Circuit for linearly driving LED illumination based on MCU-controlled color temperature switching

 #7
20210021149
2021-01-21

HIGH BAY BATTERY BACKUP

 #8
20200413575
2020-12-31

Active shunt filtering

 #9
20200404752
2020-12-24

Dynamic driver voltage headroom adjustment

 #10
20200378562
2020-12-03

LED lamp and LED emitter of the same

 #11
20200367331
2020-11-19

User control modality for LED color tuning

 #12
20200346676
2020-11-05

Systems and methods for controlling railroad highway crossing flashers

 #13
20200340924
2020-10-29

Biosensing system with self-compensation

 #14
20200314975
2020-10-01

Dual-control LED dimming system and method

 #15
20200314974
2020-10-01

Systems, devices, and methods for controlling an LED light source based on a color temperature scale factor

 #16
20200296809
2020-09-17

Light-emitting diode driving system for transmitting signal based on power line

 #17
20200281054
2020-09-03

ELECTRODELESS DIMMING AND TONING FILL LAMP

 #18
20200271292
2020-08-27

LED driver system for streetlights

 #19
20200267949
2020-08-27

Control System for a Pet Enclosure Lamp With Sound Simulation of an Ecological Environment

 #20
20200267808
2020-08-20

Driver, controlling method and illumination system

 #21
20200263855
2020-08-20

WORK LIGHT

 #22
20200259339
2020-08-13

METHOD AND APPARATUS TO POWER AN ULTRA-LOW VOLTAGE TOW LIGHT ASSEMBLY AT A HIGH-SPEED CHARGING RATE

 #23
20200258445
2020-08-13

Multi positional attachable handle with integrated backlight illumination <> system

 #24
20200253128
2020-08-13

Apparatus to provide maximum PPFD light recipes to horticultural lighting

 #25
20200245422
2020-07-30

Bio-dimming lighting system

 #26
20200241073
2020-07-30

Host illumination of indicators of an AC adapter

 #27
20200236746
2020-07-23

Parallel circuit for light-emitting diodes

 #28
20200229405
2020-07-23

LED terrarium light for reptiles, amphibians, and birds, using an extended point source LED array with light emitting diodes of multiple wavelengths

 #29
20200225537
2020-07-16

Picture compensation method and apparatus, display device and non-transitory computer-readable storage medium

 #30
20200205254
2020-06-25

Wireless lighting control system with universal driver control interface

 #31
20200205252
2020-06-25

ILLUMINATION SYSTEM COMPRISING FIRST LIGHTING DEVICE SETS, SEQUENCE CONTROL UNITS, BLUETOOTH SEQUENCE CONTROL DEVICE, AND COMMUNICATION PATHS

 #32
20200202768
2020-06-25

Display device with halo

 #33
20200187318
2020-06-11

Automatic trimming for a dimmer switch

 #34
20200184884
2020-06-11

Monolithic full-color light-emitting diode display panel

 #35
20200178364
2020-06-04

Power supply adjustment system and lighting apparatus

 #36
20200178363
2020-06-04

Portable lighting device

 #37
20200166200
2020-05-28

Modular power supply system

 #38
20200158418
2020-05-21

Display assembly and refrigerator having the same

 #39
20200154537
2020-05-14

Dimming circuit and dimming control method

 #40
20200137847
2020-04-30

Method for monitoring power consumption of a load coupled to a power switch

 #41
20200137846
2020-04-30

Dimming control of lighting modules

 #42
20200137845
2020-04-30

Frequency-Adjustable Lamp with Stand

 #43
20200128637
2020-04-23

Privacy glass system

 #44
20200128636
2020-04-23

Method for driving a plurality of light emitting diodes and drive circuit

 #45
20200128635
2020-04-23

Integrated circuit, dimmable light-emitting diode driving circuit and driving method

 #46
20200124238
2020-04-23

Illuminated panel

 #47
20200107417
2020-04-02

LED current ripple elimination circuit applicable to very low TRIAC dimming depth

 #48
20200107416
2020-04-02

Alternating current (AC) dimming and emergency power supply method and device

 #49
20200100340
2020-03-26

Systems and methods for dimming control using TRIAC dimmers

 #50
20200100339
2020-03-26

Switching converter, control circuit and control method thereof

 #51
20200100337
2020-03-26

Parallel circuit for light emitting diode

 #52
20200094730
2020-03-26

Vehicle lamp and control method thereof

 #53
20200092974
2020-03-19

Scheduled automation associations for a lighting control system

 #54
20200092967
2020-03-19

LED lighting system

 #55
20200092966
2020-03-19

LED lighting driver and drive method

 #56
20200092965
2020-03-19

Smart headlamp system

 #57
20200092964
2020-03-19

Modular solar lighting and power management system and apparatus

 #58
20200090608
2020-03-19

Backlight systems and methods for electronic device displays

 #59
20200084868
2020-03-12

Dynamic pixel diagnostics for a high refresh rate LED array

 #60
20200084864
2020-03-12

Systems and methods for commissioning and localizing devices used for cloud-based monitoring and control of physical environments

 #61
20200084857
2020-03-12

Luminaire bus system

 #62
20200084849
2020-03-12

System and method using switch to realize light fixture dimming and state restoration

 #63
20200083409
2020-03-12

Light emitting device

 #64
20200081241
2020-03-12

Embeddable module for high output LED

 #65
20200077598
2020-03-12

LIGHTING SYSTEM AND SENSOR ARRAY FOR GROWING PLANTS

 #66
20200077491
2020-03-05

Methods and devices for auto-calibrating light dimmers

 #67
20200077481
2020-03-05

Modulating an illumination level of a user interface luminous element

 #68
20200077480
2020-03-05

LED dimmer bulb using microcontroller and AC mains toggle switch for power and dim control

 #69
20200070720
2020-03-05

Compact light-emitting diode arrangement

 #70
20200070714
2020-03-05

Lighting control device for vehicular lamp, vehicular lamp system

 #71
20200068682
2020-02-27

Controlling a lighting device having at least two electric light sources

 #72
20200068681
2020-02-27

Environment controller and method for proportionally adjusting the light intensity of several lighting devices

 #73
20200068679
2020-02-27

Light emitting diode light structures

 #74
20200068678
2020-02-27

Electronic ballast interface circuit

 #75
20200067419
2020-02-27

Load control device for high-efficiency loads

 #76
20200064691
2020-02-27

Backlight module for liquid crystal display device

 #77
20200064688
2020-02-27

Local dimming system and method adaptable to a backlight of a display

 #78
20200063951
2020-02-27

LED lighting methods and apparatus

 #79
20200060530
2020-02-27

Light source system, light source control method, first light source apparatus, and endoscope system

 #80
20200060002
2020-02-20

Dimmer interface having reduced power consumption

 #81
20200060001
2020-02-20

Load control device for a light-emitting diode light source having different operating modes

 #82
20200060000
2020-02-20

Address setting and signal transmission method and LED module based on the power line working condition

 #83
20200059999
2020-02-20

System and method of two-wire control of multiple luminaries

 #84
20200059378
2020-02-20

Load control system having audio output devices

 #85
20200058253
2020-02-20

Pixel circuit, display panel, display device, and method of driving pixel circuit

 #86
20200055448
2020-02-20

ILLUMINATED VEHICLE HEADREST

 #87
20200053858
2020-02-13

Lighting communications gateway

 #88
20200053857
2020-02-13

Methods and apparatus for information management and control of outdoor lighting networks

 #89
20200053850
2020-02-13

Habitat control system

 #90
20200053849
2020-02-13

Programmable driver for variable light intensity

 #91
20200053848
2020-02-13

Power supply circuit and LED driving circuit

 #92
20200053847
2020-02-13

Driver for LED device and LED system

 #93
20200053845
2020-02-13

Light emitting diode light system

 #94
20200053269
2020-02-13

Electronic device with adjustable illumination

 #95
20200051467
2020-02-13

System and method for controlling amount of light emitting from illuminating screen

 #96
20200050058
2020-02-13

ELECTRONIC DEVICE

 #97
20200045891
2020-02-13

PULSED LIGHTING CONTROLLER

 #98
20200045791
2020-02-06

Load control device for a light-emitting diode light source

 #99
20200045790
2020-02-06

Function disabler device and system

 #100
20200044735
2020-02-06

VISIBLE LIGHT COMMUNICATION FOR MOBILE DEVICES

 #101
20200043426
2020-02-06

Configurable lighting system

 #102
20200037423
2020-01-30

DIMMING CONTROL FOR LIGHTING SYSTEMS AND METHODS THEREOF

 #103
20200037410
2020-01-30

Apparatus and methods for controlling LED light flux

 #104
20200032966
2020-01-30

LED tube lamp

 #105
20200028358
2020-01-23

Electronic device

 #106
20200026420
2020-01-23

Diamond shaped digitial color selection interface

 #107
20200025357
2020-01-23

Weapon mounted light and operation thereof

 #108
20200022428
2020-01-23

Looms for inclusion within items of clothing

 #109
20200022242
2020-01-16

Commissioning of one or more installed devices of a lighting system

 #110
20200022240
2020-01-16

Controlling a plurality of lighting units

 #111
20200022237
2020-01-16

Driver system

 #112
20200022236
2020-01-16

LED lighting system and method therefor

 #113
20200022232
2020-01-16

LED lighting system, apparatus, and dimming method

 #114
20200022229
2020-01-16

Methods and apparatus to reduce a coupling effect in an LED display

 #115
20200018465
2020-01-16

LED lighting methods and apparatus

 #116
20200018456
2020-01-16

Electronic lighting device and method for manufacturing same

 #117
20200015335
2020-01-09

Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs

 #118
20200015333
2020-01-09

LIGHTING DEVICE, SYSTEM AND METHOD FOR CONTROLLING A LIGHTING DEVICE

 #119
20200015331
2020-01-09

Power converter and control method thereof

 #120
20200008278
2020-01-02

Method and system for a flicker-free light dimmer in an electricity distribution network

 #121
20200007126
2020-01-02

Bidirectional electronic switch and dimmer comprising a light emitting device to illuminate a photo-activated electronic device

 #122
20190394852
2019-12-26

Variable multi-color LED light string and controller for an artificial tree

 #123
20190394849
2019-12-26

Methods and apparatus for TRIAC-based dimming of LEDs

 #124
20190394848
2019-12-26

Indoor power line transmission control system

 #125
20190394847
2019-12-26

VARIABLE LIGHTING SYSTEM

 #126
20190394844
2019-12-26

Multi-mode dimming control method and dimming circuit

 #127
20190394843
2019-12-26

Linear constant-current LED light circuit

 #128
20190387601
2019-12-19

Location-based configuration of a load control device

 #129
20190387598
2019-12-19

VISIBLE STANCHION WITH LED LIGHTING

 #130
20190387590
2019-12-19

Control device for an LED light and method for controlling an LED light

 #131
20190387588
2019-12-19

Power converter with current matching

 #132
20190383482
2019-12-19

Illuminated cabinet

 #133
20190383460
2019-12-19

Operating a lighting module with LED elements

 #134
20190380192
2019-12-12

Illumination system and method for maintaining a common illumination value on a release command sent from a keypad

 #135
20190380186
2019-12-12

Lighting system and method

 #136
20190380184
2019-12-12

Random lighting device

 #137
20190380183
2019-12-12

Systems and methods for stage-based control related to TRIAC dimmers

 #138
20190380180
2019-12-12

Constant current drive circuit

 #139
20190377128
2019-12-12

Light engines with dynamically controllable light distribution

 #140
20190376675
2019-12-12

LED lighting methods and apparatus

 #141
20190373825
2019-12-12

Irradiance-controlled fixture for horticultural applications

 #142
20190373824
2019-12-12

Irradiance-controlled fixture for horticultural applications

 #143
20190373701
2019-12-05

Light emitting diode (LED) lighting device or lamp with configurable light qualities

 #144
20190373696
2019-12-05

Pixel-controlled LED light with burnable sequence and method of operating the same

 #145
20190373695
2019-12-05

Constant voltage dimming power supply and dimming system for lighting device

 #146
20190373694
2019-12-05

Lighting system

 #147
20190369440
2019-12-05

DISPLAY APPARATUS

 #148
20190368693
2019-12-05

Lighting system

 #149
20190368692
2019-12-05

Lighting system

 #150
20190364641
2019-11-28

LED lighting device with LED board on network

 #151
20190364640
2019-11-28

Detection circuit and detection method for a triac dimmer

 #152
20190364639
2019-11-28

Efficient dynamic light mixing for compact linear LED arrays

 #153
20190364634
2019-11-28

LED lighting system

 #154
20190364633
2019-11-28

Lighting apparatus with a plurality of light engines

 #155
20190364628
2019-11-28

LED driver with silicon controlled dimmer, apparatus and control method thereof

 #156
20190363211
2019-11-28

Optically gated transistor selector for variable resistive memory device

 #157
20190361217
2019-11-28

Handheld mobile light source

 #158
20190359349
2019-11-28

Aircraft light and aircraft light assembly

 #159
20190357447
2019-11-28

Method and apparatus for horticultural lighting to better simulate the sun

 #160
20190357333
2019-11-21

Color-changing lighting dynamic control

 #161
20190357328
2019-11-21

LED lighting and alert system

 #162
20190357325
2019-11-21

AC light emitting diode and AC LED drive methods and apparatus

 #163
20190353312
2019-11-21

Portable lantern light with multiple operating modes

 #164
20190350060
2019-11-14

Systems and methods for stage-based control related to TRIAC dimmers

 #165
20190350059
2019-11-14

Driver system for a light emitting device

 #166
20190350058
2019-11-14

LED light and electronic candle

 #167
20190350053
2019-11-14

AC light emitting diode and AC LED drive methods and apparatus

 #168
20190346102
2019-11-14

Electronic lighting device and method for manufacturing same

 #169
20190346088
2019-11-14

Method for driving LED tube lamp

 #170
20190344705
2019-11-14

Supplemental exterior lighting system for recreational vehicles

 #171
20190342977
2019-11-07

Systems and methods for allocating a network address to a lighting device

 #172
20190342973
2019-11-07

Color sensing using pulsed light

 #173
20190342971
2019-11-07

Lighting load abnormality detecting device and corresponding lighting system

 #174
20190342965
2019-11-07

Luminaire with programmable light distribution

 #175
20190342964
2019-11-07

Luminaire with programmable light distribution

 #176
20190342963
2019-11-07

Light fixture with dynamically controllable light distribution

 #177
20190342957
2019-11-07

Systems and methods for daylight harvesting

 #178
20190341779
2019-11-07

Universal power control device

 #179
20190341423
2019-11-07

Light engines with dynamically controllable light distribution

 #180
20190341422
2019-11-07

Light fixture with dynamically controllable light distribution

 #181
20190341421
2019-11-07

Light fixture with dynamically controllable light distribution

 #182
20190335570
2019-10-31

Illumination dummy module

 #183
20190335558
2019-10-31

LED luminaire

 #184
20190335557
2019-10-31

LED lighting system

 #185
20190335556
2019-10-31

Dimming controllers and dimming methods capable of receiving PWM dimming signal and DC dimming signal

 #186
20190335555
2019-10-31

Circuits and methods for controlling an intensity of a light-emitting diode light source

 #187
20190335552
2019-10-31

Linear regulated dimmable LED driver for DC distributed lighting system

 #188
20190333376
2019-10-31

Method for controlling the light distribution of a luminaire

 #189
20190331305
2019-10-31

LED tube lamp

 #190
20190327821
2019-10-24

Connected lighting system

 #191
20190327818
2019-10-24

Modular lighting panel

 #192
20190327810
2019-10-24

Systems and methods for intelligent dimming control using TRIAC dimmers

 #193
20190327809
2019-10-24

LED pixel circuits with PWM dimming

 #194
20190327807
2019-10-24

AC/DC converters having power factor correction

 #195
20190327806
2019-10-24

Solid-state lighting with a luminaire control gear

 #196
20190327802
2019-10-24

LED driver with silicon controlled dimmer, apparatus and control method thereof

 #197
20190327799
2019-10-24

LED lighting system

 #198
20190327798
2019-10-24

Electric device capable of reducing light interference

 #199
20190324350
2019-10-24

Segmented light or optical power emitting device with fully converting wavelength converting material and methods of operation

 #200
20190323670
2019-10-24

Artificial candle with moveable projection screen position

 #201
20190323667
2019-10-24

LED light linear strip, mounting structure and clip assembly

 #202
20190320510
2019-10-17

Breathing light adjusting method, apparatus and electronic device

 #203
20190318697
2019-10-17

Configurable modes for lighting systems

 #204
20190317364
2019-10-17

THIN TWO-DIMENSIONAL LOCAL DIMMING BACKLIGHT

 #205
20190316748
2019-10-17

Electronic lighting device

 #206
20190316742
2019-10-17

High efficiency LEDs and LED lamps

 #207
20190313517
2019-10-10

Smart LED lighting system and method

 #208
20190313513
2019-10-10

Modular LED Driving System for Architectural and Entertainment Lighting Systems

 #209
20190313500
2019-10-10

Load control device for a light-emitting diode light source

 #210
20190313499
2019-10-10

Single control LED dimming and white tuning

 #211
20190313498
2019-10-10

Light emitting diode drive circuit with silicon-controlled rectifier dimmer, circuit module and control method

 #212
20190313497
2019-10-10

Semiconductor-based lighting device

 #213
20190313496
2019-10-10

LED light temperature control

 #214
20190313495
2019-10-10

Power supplies utilizing multiple transfer functions

 #215
20190313491
2019-10-10

AC light emitting diode and AC LED drive methods and apparatus

 #216
20190313004
2019-10-10

LIGHT-EMITTING APPARATUS FOR SHOOTING WITH FLASH, CHARGING CONTROL METHOD THEREFOR, AND STORAGE MEDIUM

 #217
20190306948
2019-10-03

Directional lighting system and method

 #218
20190306947
2019-10-03

Control system for exhibition hall lighting circuit

 #219
20190306946
2019-10-03

White light source system

 #220
20190306945
2019-10-03

Pulse-width-modulation control of micro light emitting diode

 #221
20190306941
2019-10-03

Integrated device and method for driving lighting loads with a brightness compensation

 #222
20190306940
2019-10-03

AC light emitting diode and AC LED drive methods and apparatus

 #223
20190302599
2019-10-03

Projection system, beam generating apparatus thereof, and beam generating method

 #224
20190301694
2019-10-03

Electronic lighting device and method for manufacturing same

 #225
20190301693
2019-10-03

Electronic lighting device

 #226
20190297784
2019-10-03

Multi channel electronic driver for plant growth

 #227
20190297715
2019-09-26

Dimmer control circuit, method and system

 #228
20190297709
2019-09-26

Lighting system and lighting apparatus

 #229
20190297707
2019-09-26

Intelligent lamp holder and usage method applied therein

 #230
20190297703
2019-09-26

Recalibration of a tunable lamp system

 #231
20190297697
2019-09-26

Color temperature controlled and low THD LED lighting devices and systems and methods of driving the same

 #232
20190297694
2019-09-26

LED driver circuit and LED driving method

 #233
20190297693
2019-09-26

LED LAMP FAILURE ALERTING SYSTEM

 #234
20190293251
2019-09-26

Electronic lighting device and method for manufacturing same

 #235
20190289701
2019-09-19

Wireless controller for a lighting fixture

 #236
20190289686
2019-09-19

Switch based lighting control

 #237
20190289685
2019-09-19

Light-emitting device

 #238
20190285267
2019-09-19

Illuminated cabinet

 #239
20190285266
2019-09-19

Illuminated ponytail holder

 #240
20190281680
2019-09-12

Enhancing contrast of LED lighting

 #241
20190281677
2019-09-12

Control apparatus of light emitting diode and non-transitory computer readable medium storing program

 #242
20190281674
2019-09-12

LED driver adapted for gang boxes

 #243
20190281673
2019-09-12

LED tube lamp

 #244
20190280769
2019-09-12

LAMP WITH CODED LIGHT FUNCTIONALITY

 #245
20190278460
2019-09-12

Lighting wall controller with configurable user interface

 #246
20190277488
2019-09-12

LED LIGHT RE-DIRECTION ACCESSORY

 #247
20190274206
2019-09-05

Lighting

 #248
20190274200
2019-09-05

Light source driving device

 #249
20190270402
2019-09-05

Systems and methods for autonomous vehicles with lighting control

 #250
20190269001
2019-08-29

Light fixture control

 #251
20190268997
2019-08-29

System and method for managing lighting based on population mobility patterns

 #252
20190268993
2019-08-29

Configurable lighting system

 #253
20190268989
2019-08-29

LED lighting system

 #254
20190268988
2019-08-29

Light module for a motor vehicle comprising a plurality of light source branches

 #255
20190268987
2019-08-29

Integrated programmable effect and functional lighting module

 #256
20190268986
2019-08-29

Electroluminescent light source intended to be supplied with power by a voltage source

 #257
20190268982
2019-08-29

AC light emitting diode and AC LED drive methods and apparatus

 #258
20190268981
2019-08-29

COLOR-CHANGING OUTDOOR LIGHT WITH REDUCED-LEVEL WHITE MODE

 #259
20190265545
2019-08-29

System and method for selective activation of display backlight illumination

 #260
20190264899
2019-08-29

LED lighting methods and apparatus

 #261
20190264879
2019-08-29

LED tube lamp

 #262
20190264873
2019-08-29

LED lamp

 #263
20190261490
2019-08-22

Spotlight

 #264
20190261482
2019-08-22

Configurable lighting system

 #265
20190261481
2019-08-22

Configurable lighting system

 #266
20190261478
2019-08-22

Load control device for a light-emitting diode light source having different operating modes

 #267
20190261477
2019-08-22

LIGHTING SYSTEM BUILT-IN INTELLIGENCE

 #268
20190261473
2019-08-22

LED driver circuit, corresponding device and method

 #269
20190261470
2019-08-22

VISIBLE LIGHT COMMUNICATION SYSTEM-ON-A-CHIP

 #270
20190260296
2019-08-22

Controlling output voltage for power converter

 #271
20190258114
2019-08-22

DISPLAY APPARATUS AND METHOD

 #272
20190257487
2019-08-22

Light engine and method of simulating a flame

 #273
20190257480
2019-08-22

LED tube lamp

 #274
20190256160
2019-08-22

Bicycle light

 #275
20190254141
2019-08-15

Advanced light emitting diode luminaire

 #276
20190254136
2019-08-15

Adaptable lighting controller

 #277
20190254135
2019-08-15

Protection circuit for dimmer, and dimmer

 #278
20190254134
2019-08-15

METHOD FOR OPERATING A LIGHTING APPARATUS OF A MOTOR VEHICLE

 #279
20190254131
2019-08-15

Voltage transducer for a lighting system

 #280
20190252984
2019-08-15

System and method for controlling output signal of power converter

 #281
20190251814
2019-08-15

Safety device for break-in-prevention

 #282
20190246473
2019-08-08

Method for regulating an operating current of a lighting unit and control device and motor vehicle

 #283
20190246472
2019-08-08

Low-voltage light strip

 #284
20190246467
2019-08-08

Method and apparatus for operating a semiconductor light source

 #285
20190242534
2019-08-08

LED tube lamp

 #286
20190242533
2019-08-08

Controllable Lumen Output Light Bulb

 #287
20190239320
2019-08-01

Digital load control system providing power and communication via existing power wiring

 #288
20190239318
2019-08-01

High efficiency light compatibility device

 #289
20190239316
2019-08-01

Adaptive optical distribution system

 #290
20190239312
2019-08-01

Light device driving system

 #291
20190239306
2019-08-01

Load control device for a light-emitting diode light source

 #292
20190239305
2019-08-01

ELECTRIC DEVICE AND AUTOMOTIVE LIGHTING DEVICE

 #293
20190239304
2019-08-01

PWM signal generating system and light device driving system

 #294
20190239303
2019-08-01

Driver circuit for controlling brightness of light-emitting diode using switch unit and lighting control unit

 #295
20190239302
2019-08-01

High brightness LED matrix driving system

 #296
20190239300
2019-08-01

Light source device, projection type display device, and semiconductor device

 #297
20190234603
2019-08-01

Sensor modules for light fixtures

 #298
20190234567
2019-08-01

LED module and lighting apparatus

 #299
20190230761
2019-07-25

Lighting system of alternate current light-emitting diodes

 #300
20190230759
2019-07-25

PWM dimming with reduced audible noise