Feature: 1. MAIN PURPOSE: Can be used to test LED bead or TV backlight of any size, no need for screen disassembly, with accurate judgment. 2. VOLTAGE TESTING: Can test voltage of various components, such as voltage stabilizing value, voltage withstand of electrolytic capacitor, etc. 3. CIRCUIT TESTING: Test the voltage value of the DC power supply (within 300V), can be used as a DC voltmeter to test the circuit on off and leakage. 4. PLASTIC HOUSING: The LED tester housing is made of excellent ABS, with good toughness, corrosion resistance, and aging resistance. 5. WITH TEST PENS: The LED backlight tester is equipped with 2 test pens with interface, easy to connect, with switch for convenient operation. Specification: Item Type: LED Test Box Material: ABS Plug Voltage: 85-265V Output Voltage: DC 0-300V Output Current: 20/40mA Power: 18W. Package List: 1 x LED Light Tester1 x Black Test Pen1 x Red Test Pen1 x User Manual