you need a useful tool to test the LEDTV backlight strips. You can find the problem as you ' need to disassemble your LED TV to test LED strips which can save a lot of time . This LED Lamp LED TV Backlight Tester can find defective LED on the strip in few seconds with automatical voltage and current adjustment. If there is something wrong with , you can change it or replace the bad LED beads. Applicable to any size LED TV , perfect backlight inspection and maintenance tool ! It is really a good tool for Technician. Input Voltage: AC85V-265V Output Voltage: 0-320V Output current:0-35mA Main Application: Suitable for single LED beads, LED stirng, LED panel and Integrated optical LED Support testing the capacitance voltage and the diode voltage - No need to disassemble panel to test the LED strips which can save a lot of time . Safe Protection: Double Isolated Burning protection: Voltage and Current Intelligent Adjustment Safety design : Slow boost , soft . Increase the current steadily. Plug Type :EU Plug,it applies to Indonesia, , , , and so on. Colour: Material:plastic Voltage: AC100-240V Package Contents: 1 x LED tester 1 x test leads Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.