Features: LED TV screen backlight problems are becoming more and more common. With this product, there is no need to remove the screen when testing the LED backlight., You should not worry, because here we will show you the LED strip problem easily, as you don't need to disassemble your LED TV to check the LED strips, which can save a lot of time for you. This LED TV LED Backlight Tester can find the faulty LED on the strip in a few seconds with automatic voltage and current adjustment. If there is something wrong with the LED strip, you can change it or replace the bad LED beads. The transformer is insulated from heat and cold, it can protect you from electricity, so you can rest assured to use it. Applicable to all series of board lamps and luminous strip, excellent backlight control and maintenance tool! It is a really good tool for any technician. It can be tested for a long time and will not damage the lamp beads. Specification:Model:XY284-GHB Input Voltage: AC85V-265V Output Voltage: 0-320V Output Source: 0-35mARocession: app.14x8x4cm/5.51x3.15x1.57in (LxWxH)Quantity: 3pcs/setNote:Transition: 1cm=10mm=0.39inchPlease allow 0-1cm error due to manual measurement, please make sure you do not mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:1 Pc x LED Tester (Note: Power Line is European Standard)1 Pair x Test Pen1 Pc x Manual