Features: Use: Applicable to any size LED TV , perfect backlight inspection and maintenance tool. No need to disassemble panel to test the LED backlights. Suitable for: Suitable for single LED beads, LED stirng, LED panel and Integrated optical LED. Support: Support testing the capacitance voltage and the diode voltage. Safe Protection: Double Isolated. Brun prtection: Voltage and Current Intelligent Adjustment. Safety design : Slow boost , soft start. Increase the current steadily. Specifications: Model No: CA 300V Material: PVC Color: As Shown Plug: EU, US Input Voltage: 85 265V Output Voltage: 0 300V DC Test the current 10 seconds ago: 20mA Test the current in 10 seconds: 40mA Size: (Approx) 94x57x31mm(LxWxH) Package Included: 1 PC x Tester 1 Pair x 20A Test Probe Note: 1. Plug in power, it would be cost about 3 to 5 seconds to start 2. The soft start mode make the backlight getting brighter gradually 3. If you can t make sure which is and , then not test for a long time 4. Don t touch the output terminal of probes for a long time 5. Retardancy materials: Double Isolate design makes tester safety with high strength and flame 6.If the tested LED TV s backlight voltage is 000,that means short circuit,if the voltage is 300,that means open circuit. Every light s voltage of the TV should be same,if it is not,then the LED light bar is mutilated Note: 1. Due to the light and screen difference, the item s color may be slightly different from the pictures. 2. Please allow 0.5 2 cm differences due to manual measurement.