LED Testers
LED testers are test sources that power LED bars and series-connected LED strings independently of their own driver, making it possible to find a faulty LED. They are used in repairing LCD television backlight bars and LED strips to tell whether the fault is on the LED side or the driver side. This category includes the Unit UT659A LED bar tester and the UT659D model; the product data states an output voltage of up to 300 V, an output current of 30 mA and a CAT II 300 V safety category. Find out the total forward voltage and rated current of the LED string you will test from the manufacturer's data, and choose a device by its output voltage, test current and indicator. Because high voltage can be present at the test leads, use the device in accordance with the manufacturer's instructions. An LED tester is for short-term trials; it does not replace an LED driver that continuously powers a luminaire.
Products
- Unit Ut659D LED Tester — Unit · SKU: UT659D · TRY 1,872.95 · Made to order
- Unit UT659A LED Bar Tester — Unit · SKU: UT659A · TRY 1,872.95 · Made to order
How to choose LED Testers
LED testers are test sources that power LED bars and series-connected LED strings independently of their own driver, making it possible to find a faulty LED. They are used in repairing LCD television backlight bars and LED strips to tell whether the fault is on the LED side or the driver side.
- Identify the measurement or fastening task and the required insulation safety rating.
- Select jaw profile, cross-section range and accessories for the conductor or fastener standard.
- Check CAT voltage category and replacement tip or die availability for field conditions.
Frequently asked questions
What is LED Testers and where is it used?
LED testers are test sources that power LED bars and series-connected LED strings independently of their own driver, making it possible to find a faulty LED. They are used in repairing LCD television backlight bars and LED strips to tell whether the fault is on the LED side or the driver side.
What should I compare when choosing LED Testers?
Find out the total forward voltage and rated current of the LED string you will test from the manufacturer's data, and choose a device by its output voltage, test current and indicator.
Where can I find technical details for LED Testers products?
An LED tester is for short-term trials; it does not replace an LED driver that continuously powers a luminaire.
Electrical and Electronic Testers Selection Guide: Technical Criteria and Engineering Practice