RT300M – iFIX LED LCD Backlight Tester | Universal TV Lamp Beads Checker with Auto Polarity, Voltage & Current Display (0–300V / 1–300mA)

? Product Overview:

The RT300M iFIX LED LCD Backlight Tester is a high-precision diagnostic tool crafted for professional and DIY use in TV repair and electronics troubleshooting. Designed to quickly detect faults in LED backlight strips, lamp beads, and driver boards, this tester is your go-to solution for identifying dead LEDs, broken circuits, and dim backlight issues without dismantling the TV panel.

With automatic voltage adjustment, real-time voltage & current display, and auto polarity detection, the RT300M offers a safe and efficient way to test both individual LED beads and complete LED strips from 0–300V and 1–300mA. Its robust build, intelligent protections, and wide compatibility make it ideal for use in workshops, manufacturing, or field service environments.

Use Cases:

• ✔ Diagnosing dim, flickering, or dead screen backlights

• ✔ Identifying faulty LED beads without removing from the strip

• ✔ Quick testing of backlight bars and driver boards

• ✔ Preventing damage to LED strips via safe voltage regulation

• ✔ Verifying repaired or new LED strips before installation

Technical Specifications: