---
product_id: 389332218
title: "Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V"
brand: "sid led"
price: "$90.12"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/389332218-lamp-and-tv-backlight-tester-for-all-led-lights-repair
store_origin: US
region: United States of America
---

# Long Testing Duration Universal Compatibility 0-320V Output Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V

**Brand:** sid led
**Price:** $90.12
**Availability:** ✅ In Stock

## Summary

> 💡 Illuminate Your Troubleshooting Game!

## Quick Answers

- **What is this?** Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V by sid led
- **How much does it cost?** $90.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/389332218-lamp-and-tv-backlight-tester-for-all-led-lights-repair)

## Best For

- sid led enthusiasts

## Why This Product

- Trusted sid led brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Reliable:** Test for extended periods without risking damage to lamp beads.
- • **Versatile Testing:** Compatible with all LED LCD screens, ensuring no display is left behind.
- • **Voltage Versatility:** Adjustable output from 0-320V for comprehensive testing.
- • **User-Friendly Design:** Intuitive interface makes it easy for anyone to use, from pros to DIY enthusiasts.
- • **Diagnose with Precision:** Quickly identify LED backlight issues with pinpoint accuracy.

## Overview

The SID LED Lamp and TV Backlight Tester is an essential tool for diagnosing LED backlight issues in LCD screens. With a voltage output range of 0-320V, it allows for safe and effective testing across various display sizes, ensuring you can quickly pinpoint and resolve backlight problems without damaging the components.

## Description

Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V

## Features

- LED LCD screen TV backlight problems are getting increasingly common. As we know, slight voltage change can have a big influence on TV function.
- Excellent tool for diagnosing and locating bad LEDs in backlights.
- With help of this tool, you can know the LED LCD screen backlight problem quickly.
- Testing the backlight of LED at any size display the voltage, It can be tested in a long time, and will not damage the lamp beads.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078B98QB2 |
| Best Sellers Rank | #520,335 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #497 in Voltage Testers |
| Brand | SID LED |
| Color | Black, Gray, Red, white |
| Date First Available | December 16, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8 ounces |
| Item model number | GJ2C |
| Manufacturer | SID LED |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 85 Volts |
| Package Dimensions | 7.8 x 3.3 x 2.4 inches |
| Power Source | Corded Electric |
| Style | Digital |
| UPC | 613739727386 |

## Product Details

- **Brand:** SID LED
- **Color:** Black, Gray, Red, white
- **Min. Operating Voltage:** 85 Volts
- **Power Source:** Corded Electric
- **Style:** Digital

## Images

![Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V - Image 1](https://m.media-amazon.com/images/I/61X4BqYOilL.jpg)
![Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V - Image 2](https://m.media-amazon.com/images/I/61P9Hekgi9L.jpg)
![Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V - Image 3](https://m.media-amazon.com/images/I/61rmUG-0dKL.jpg)
![Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V - Image 4](https://m.media-amazon.com/images/I/41RmoB0d8dL.jpg)
![Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V - Image 5](https://m.media-amazon.com/images/I/71t-9o94rnL.jpg)

## Questions & Answers

**Q: What's the difference between this and using a voltage meter?**
A: It's not strictly a meter: it's a constant-current power supply with a built-in meter.  It provides a constant-current source to light up the LEDs without burning them out.  If instead of this box, you put a voltage source on them (like a standard power supply or battery), the current supplied will rise to levels that can destroy the LEDs that you're trying to test (because as they light up, their resistance goes down dramatically).  This box senses the resulting current rise and drops back the voltage so that only the current levels normally required to light the LEDs are delivered to the tested components.  Unfortunately, too many people selling TV backlight LED arrays on the internet don't know about this phenomenon, and they use standard power supplies to test the arrays before shipping them.  The power supplies light up the LED arrays, but if the seller doesn't disconnect the power supply quickly enought, it destroys the LEDs just as the power supply is being disconnected.  Then that seller sends that now-broken array to a buyer who won't be able to use it.

**Q: Can I use it as permanent power supply?**
A: Pretty much designed for one purpose. Bought my son a 43" Samsung that went blank after one year. It is a lot of work getting to the back lights so this power supply is useful when you get there. Only replaced one out of 3 back light strips. If one led is shorted it pulls down the supply so all  lights are out, so each strip can be checked individually to isolate the bad strip. You can build your own supply using batteries but I did not want to be bothered. Will probably never use it again.
Btw, when finished, using your TV remote, go to settings and lower your back light power to 50% to go easy on your led's.

## Frequently Bought Together

- SID LED Lamp and TV Backlight Tester for All LED Lights Repair Output 0-320V
- Super Strong Suction Cup LCD LED TV Screen Panel Removal Tool (Set of 2)
- SID LED Multipurpose Tester for LED TV Backlight and Constant Current Driver Board Used in All LED Lights Repair Output 0-330V

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-20*