00 indicates short circuit and 300V indicates open circuit. Item: LED Lamp Bead TV Backlight Tester. The positive and negative poles of the lamp bar and lamp bead are connected inversely, without burning the lamp bar and lamp bead.
Liphontcta LED Lamp Bead TV Backlight Tester, Led Light Test Tool for White
LED Lamp Bead TV Backlight Tester - for All LED Lights Repair Output 0-300V (0-3
Liphontcta LED Lamp Bead TV Backlight Tester, Led Light 93*60*30mm, White
