1、Screen Removal Free: This LED backlight tester is high brightness, no need to remove the screen, accurate judgement, screen removal free testing of any size LED TV backlight and other LED backlights. 2、Various Voltage Measurement Parameters: The LED backlight tester can test the voltage parameters of various components such as voltage regulator, electrolytic capacitor withstand voltage value. 3、Function as DC Voltmeter: The LED backlight tester tests the voltage value of the DC power supply (within ), and can be used as a DC voltmeter to test the on off and leakage of the circuit. 4、Adaptive Output Voltage: This LED backlight tester has an adaptive output voltage of 0‑. The voltage adapts automatically during the test and the lamp will not burn out. 5、Easy to Operate: This LED backlight tester is made of ABS material, the power cord is integrated with the case design, easy to operate, with the function, working voltage, you can use the problem accurately. Item Type: LED Backlight Tester Material: ABS Output Current: 15 30mA Power: 12W 1 x LED Backlight Tester 1 x Black Test Pen 1 x Red Test Pen 1 x Instruction Manual