UNI-T UT659A LED Tester

 is a professional and efficient tool designed to test LED beads, LED strips, backlight panels, and various LED modules quickly and accurately. Whether you are repairing televisions, LED lighting fixtures, signage, or consumer electronics, the UNI-T UT659A LED Tester provides a safe and reliable way to diagnose LED failures without the need for complex disassembly or soldering.

This device features an adjustable output voltage and constant current design, allowing it to automatically detect the LED voltage requirements and illuminate the LED strip or bead for instant visual verification. With its high-voltage output capability, technicians can accurately identify open circuits, weak LEDs, or burned-out segments in TV backlight panels with ease.

Unlike low-quality testers on the market, the UT659A offers protection against overload and short-circuit conditions, keeping both the LED and user safe during operation. Its lightweight and ergonomic design makes it ideal for fieldwork or bench testing.

Key Features:

•  Real-time LED testing without removing LEDs from the board

•  Automatically adjusts output voltage depending on LED load

•  Safe constant-current output protects LEDs from damage

•  High-voltage capability enables testing of long LED strips and TV backlights

•  Clear display with output voltage indication

Benefits:

• Saves time during TV backlight repair — no soldering or LED removal required

• Helps identify faulty LED beads or segments immediately

• Reduces scrap cost by pinpointing exact faulty LEDs

• Easy to use — plug, connect, and test

Typical Applications:

• LCD & LED TV repair workshops

• LED strip lighting installation and maintenance

• Diagnostic testing for LED signage and advertisement boards

• Electronic assembly and prototyping labs

Data Sheet (Technical Specifications)