Support full voltage (85V~265V 50Hz~60Hz) input power supply 30mA/300V file can automatically identify LED polarity The internal chip has over-temperature/over-current/over-load protection functions LED lamp series circuit test Single LED lamp bead test Intelligent adjustment of voltage and current LCD display test value No need to remove the screen, you can check the quality of the backlight Features: Lightweight and easy to use Support full voltage (85V~265V 50Hz~60Hz) input power supply 30mA/300V file can automatically identify LED polarity The internal chip has over-temperature/over-current/over-load protection functions LED lamp series circuit test Single LED lamp bead test Intelligent adjustment of voltage and current LCD display test value No need to remove the screen, you can check the quality of the backlight CAT II 300V safety rating. Package Include: 1 x UNI-T LED Tester UT659D