Unlock the full potential of your LED repair capabilities with our Professional LED TV Backlight Tester. Designed for precision and ease of use, this universal tester is an essential tool for diagnosing and repairing LED lights across a wide range of applications. Check the Fault: Quickly and accurately identify issues with LED TV backlights and constant current boards. This tester simplifies the process of diagnosing LCD TV faults, saving you time and effort in pinpointing the problem. Voltage Test: Featuring manual stepless presetting of open circuit voltage from 20 to 330VDC, this tester intelligently adapts to the LED light source voltage during testing. Enjoy hassle-free operation with no need for manual adjustments. Current Test: Easily preset the maximum short circuit limit current between 20 and 150mA. The tester automatically adjusts the current during testing, ensuring precise and reliable results every time. Effective Test: For detailed diagnostics, preset the output voltage to 20V or below to utilize a 1mA grade current. This feature allows you to test the voltage parameters of various IC power supply legs offline, helping you determine the condition of the ICs with ease. Easy to Use: Equipped with a special lmA accuracy wide voltage (0-330V) constant current source output, this tester offers flexibility for developing innovative applications. Its user-friendly design makes it accessible for both professionals and DIY enthusiasts. Widely Used: This versatile LED TV tester is suitable for testing forward and reverse voltages of diodes, voltage regulators, transistors, MS tubes, and more. It can also measure the voltage resistance or breakdown voltage of capacitors, varistors, and TVS transient diodes up to 330V, making it an indispensable tool for a variety of electronic repairs. Enhance your repair toolkit with our LED TV Backlight Tester and experience unparalleled accuracy and efficiency in LED diagnostics and repairs. Whether you're a professional technician or a hobbyist, this tester is your go-to solution for all LED light repairs.