1There is no regulation, no electric shocking, no burning beads, no glaring, which can automatically adjust current and voltage. 2High brightness LED tester can test any size LED without disassembling the screen, easily judge whether the LED backlight is good or bad. 3At the same time such tester also has three major functions to test the withstand voltage value of the capacitor, test the voltage value of the voltage stabilizing diode and test the voltage value of the light bead light board, so as to determine the quality of the light bead. 4Simple operation and easy to use, do not burn the light, do not get an electric shocking, suitable for any size LED TV backlight detection and maintenance. 5LED tester can measure the voltage value of light beads, light bar, light board, voltage stabilizing diode and so on. Item Type: LED tester Product Model: LED 2c tester Product Features: Portable LED light board detector (no regulation, no electric shocking, no burning beads, no glaring). Automatically adjust current and voltage. Product Description: LED tester, LED backlight tester With Three Major Functions: 1. test the withstand voltage of capacitor 2. test the voltage stabilizing value of the voltage stabilizing diode 3. The voltage value of the light bead light board can be tested to determine the quality of the light bead. Input Voltage: 85-265V AC (international) Output Voltage: 0-300V Product Use: Measure the voltage value of light beads, light bar, light board, voltage stabilizing diode and so on. Advantage: 1. All LED backlights light up easily without power limitation. 2. When a single light bead is not sure about the positive and negative poles and is afraid of burning the light, random testing with low current and low voltage will not burn the light. 3. The test data is accurate, and the voltage value is the most important data to judge the quality of the LED. 4. Safe and reliable output current of 1mA, output voltage of 0-21V. Low current and low voltage can also be used to test the voltage value of components below 21V. 1 x English User Manual1 x Power Cord2 x LED Tester Pen1 x Main Screen