1、LED LCD Backlight Tester: Digital display real time voltage output, voltage can be adjusted internally, and the voltage value can be self corrected. Using this tool, you can quickly use the LED LCD screen backlight problem. If there is a problem with the LED lamp group, you can use it to replace the bad LED lamp beads. 2、0‑ Adaptive Voltage: Suitable for most series and parallel lamp beads testing. During the test, the gradual start method is adopted, the voltage automatically adapts to the gradual increase in the current, and the lamp beads will not be burnt, and the normal brightness can be reached after three to five seconds. 3、Digital Display: Real time voltage output, with adjustable voltage inside, and the voltage value can be self calibrated. Digital meter uses a green light emitting tube, the display of 00 means a short circuit, and the display of means an open circuit. The display voltage of each group of LED strips of the same LCD TV should be the same. 4、Lamp Board Repair Tester: Cold and heat isolation, no electric shock, integrated design of the power cord box, easy to carry, no need to remove the screen. Light up the dual LED light strip backlight, LED lamp bead checker, cable tester LED and TV backlight tester are suitable for all LED lamp maintenance. 5、LED Lamp Bead Tester: Light up the LCD TV screen, the screen with broken lamp beads will light up the same, the LCD TV is generally divided into several groups in parallel, you can see which group of voltage is different through the voltage, so as to judge which group of LED lights The beads are damaged. Item Type: LED TV Backlight Tester Color: As Pictures Shown Power: 25W Weight: Approx.267g/9.4oz Output Current: 40mA-60mA Material: PVC+Copper+ABS 1 x Tester 2 x Test Pen