{"id":9339668529389,"title":"Constant Current Board ＆ TV Backlight Strip ＆ LED Lamp Bead Multi Tester, No Screen Disassembly, Test Tool for All LED Lights Repair, Professional TV Maintenance Testing Kit, Output 0-330V (0-150mA)","handle":"constant-current-board-tv-backlight-strip-led-lamp-bead-multi-tester-no-screen-disassembly-test-tool-for-all-led-lights-repair-professional-tv-maintenance-testing-kit-output-0-330v-0-150ma","description":"\u003ch3\u003eConstant Current Board ＆ TV Backlight Strip ＆ LED Lamp Bead Multi Tester, No Screen Disassembly, Test Tool for All LED Lights Repair, Professional TV Maintenance Testing Kit, Output 0-330V (0-150mA)\u003c\/h3\u003e\n\u003cp id=\"b\"\u003e\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eProfessional Multi- Functional TesterThis multi tester can perform accurate constant current driver board testing, TV backlight strip testing, and real-time detection of voltage and current of various electronic components with high-precision voltmeter and ammeter. It supports automatic + manual dual mode for voltage and current adjustment, and is also suitable for repairing all LED lights, and can judge faults intuitively (voltage=0 for short circuit, voltage=330V for open circuit).\u003c\/li\u003e\n \u003cli\u003eStepless Adjustment \u0026amp; Safe TestingThis tester has the core advantages of safety and reliability: it is designed with anti-electric shock, no sparking when short-circuited, and intelligent adjustment of output voltage and current. It adopts dual isolation protection of power supply and tester, which can be tested for a long time without damaging lamp beads. No risk of burnout when testing single LED beads with wrong polarity. (Set voltage around to 20V and the current switch to 1mA)\u003c\/li\u003e\n \u003cli\u003eNo Screen Disassembly RequiredThis backlight tester can test constant current boards, truly achieving comprehensive screen-free testing. It is equipped with factory default settings (330V\/50mA) for direct use without repeated adjustment. Manual voltage and current control functions allow for precise range customization, enabling manual adjustment of the test voltage (0-330V\/DC) and current (0-150mA) ranges. It can quickly locate backlight faults without blind replacement of the whole board, save maintenance time and cost, and reduce the risk of burning LEDs and screens.\u003c\/li\u003e\n \u003cli\u003eUsed in All LED Lights RepairMulti-Functional Tester can test all of LED lights, supporting all sizes of LED TVs, monitors and computer screens, and compatible with all high-voltage and low-voltage LED strips, including LED strips, LED panels, single LED beads, COB lighting sources, TV backlight, displays, computers, and various electronic components and more, making it an essential tool for LED light repair, TV backlight testing, and vehicle LED testing. It will not burn LED beads and panels during testing.\u003c\/li\u003e\n \u003cli\u003eElectronic Component Withstand Voltage, Breakdown \u0026amp; Characteristic TestsAdd 1mA precision wide voltage (0-330V) constant current source output, allowing for the development of various ingenious applications. For example, it can be used to measure the forward and reverse voltages of diodes, Zener diodes, transistors, MOSFETs, etc., and the withstand voltage or breakdown voltage of capacitors below 330V, varistors, TVS transient diodes, etc.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-04-17T00:23:55+10:00","created_at":"2026-04-17T00:23:51+10:00","vendor":"MULBRANTEX","type":"Multi Testers","tags":["electronics_Apr2026"],"price":20800,"price_min":20800,"price_max":20800,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":49789403267309,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B0FRXTTHJ8","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Constant Current Board ＆ TV Backlight Strip ＆ LED Lamp Bead Multi Tester, No Screen Disassembly, Test Tool for All LED Lights Repair, Professional TV Maintenance Testing Kit, Output 0-330V (0-150mA)","public_title":null,"options":["Default Title"],"price":20800,"weight":399,"compare_at_price":null,"inventory_management":"shopify","barcode":"KT4H","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/leoforward.com\/cdn\/shop\/files\/B0FRXTTHJ8.jpg?v=1776927137","\/\/leoforward.com\/cdn\/shop\/files\/71XgM9TDTIL.jpg?v=1776349434","\/\/leoforward.com\/cdn\/shop\/files\/71Q8VxBeWZL.jpg?v=1776349434","\/\/leoforward.com\/cdn\/shop\/files\/61_VLMyK3BL.jpg?v=1776349434","\/\/leoforward.com\/cdn\/shop\/files\/51qcrJP7QTL.jpg?v=1776349434","\/\/leoforward.com\/cdn\/shop\/files\/61ooMG8WRfL.jpg?v=1776349434"],"featured_image":"\/\/leoforward.com\/cdn\/shop\/files\/B0FRXTTHJ8.jpg?v=1776927137","options":["Title"],"media":[{"alt":null,"id":39399542817005,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/leoforward.com\/cdn\/shop\/files\/B0FRXTTHJ8.jpg?v=1776927137"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/B0FRXTTHJ8.jpg?v=1776927137","width":1600},{"alt":null,"id":39399542849773,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/leoforward.com\/cdn\/shop\/files\/71XgM9TDTIL.jpg?v=1776349434"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/71XgM9TDTIL.jpg?v=1776349434","width":1600},{"alt":null,"id":39399542882541,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/leoforward.com\/cdn\/shop\/files\/71Q8VxBeWZL.jpg?v=1776349434"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/71Q8VxBeWZL.jpg?v=1776349434","width":1600},{"alt":null,"id":39399542915309,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/leoforward.com\/cdn\/shop\/files\/61_VLMyK3BL.jpg?v=1776349434"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/61_VLMyK3BL.jpg?v=1776349434","width":1600},{"alt":null,"id":39399542948077,"position":5,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/leoforward.com\/cdn\/shop\/files\/51qcrJP7QTL.jpg?v=1776349434"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/51qcrJP7QTL.jpg?v=1776349434","width":1600},{"alt":null,"id":39399542980845,"position":6,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/leoforward.com\/cdn\/shop\/files\/61ooMG8WRfL.jpg?v=1776349434"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/61ooMG8WRfL.jpg?v=1776349434","width":1600}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eConstant Current Board ＆ TV Backlight Strip ＆ LED Lamp Bead Multi Tester, No Screen Disassembly, Test Tool for All LED Lights Repair, Professional TV Maintenance Testing Kit, Output 0-330V (0-150mA)\u003c\/h3\u003e\n\u003cp id=\"b\"\u003e\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eProfessional Multi- Functional TesterThis multi tester can perform accurate constant current driver board testing, TV backlight strip testing, and real-time detection of voltage and current of various electronic components with high-precision voltmeter and ammeter. It supports automatic + manual dual mode for voltage and current adjustment, and is also suitable for repairing all LED lights, and can judge faults intuitively (voltage=0 for short circuit, voltage=330V for open circuit).\u003c\/li\u003e\n \u003cli\u003eStepless Adjustment \u0026amp; Safe TestingThis tester has the core advantages of safety and reliability: it is designed with anti-electric shock, no sparking when short-circuited, and intelligent adjustment of output voltage and current. It adopts dual isolation protection of power supply and tester, which can be tested for a long time without damaging lamp beads. No risk of burnout when testing single LED beads with wrong polarity. (Set voltage around to 20V and the current switch to 1mA)\u003c\/li\u003e\n \u003cli\u003eNo Screen Disassembly RequiredThis backlight tester can test constant current boards, truly achieving comprehensive screen-free testing. It is equipped with factory default settings (330V\/50mA) for direct use without repeated adjustment. Manual voltage and current control functions allow for precise range customization, enabling manual adjustment of the test voltage (0-330V\/DC) and current (0-150mA) ranges. It can quickly locate backlight faults without blind replacement of the whole board, save maintenance time and cost, and reduce the risk of burning LEDs and screens.\u003c\/li\u003e\n \u003cli\u003eUsed in All LED Lights RepairMulti-Functional Tester can test all of LED lights, supporting all sizes of LED TVs, monitors and computer screens, and compatible with all high-voltage and low-voltage LED strips, including LED strips, LED panels, single LED beads, COB lighting sources, TV backlight, displays, computers, and various electronic components and more, making it an essential tool for LED light repair, TV backlight testing, and vehicle LED testing. It will not burn LED beads and panels during testing.\u003c\/li\u003e\n \u003cli\u003eElectronic Component Withstand Voltage, Breakdown \u0026amp; Characteristic TestsAdd 1mA precision wide voltage (0-330V) constant current source output, allowing for the development of various ingenious applications. For example, it can be used to measure the forward and reverse voltages of diodes, Zener diodes, transistors, MOSFETs, etc., and the withstand voltage or breakdown voltage of capacitors below 330V, varistors, TVS transient diodes, etc.\u003c\/li\u003e\n \u003c\/ul\u003e"}