Feature:1. GOOD COMPATIBILITY: Adjustable output voltage and output current, high brightness and high voltage output, compatible with LED lamp beads, LED light strings, LED panels, integrated optical LEDs and other lamp panel lighting2. INTELLIGENT TO PREVENT BURNOUT: Displays output voltage and output current, voltage and current intelligent adjustment. Automatically adjust according to the number of LED lights to prevent burnout3. SIMPLE TESTING: Supports testing capacitor voltage and diode voltage. You can test the LED strip without removing the panel, which can save you a lot of time4. SAFETY PROTECTION: Double (hot and cold) isolation. Safety design with slow boost, soft start. Increase the current steadily. Gradually brightening light protects your eyes5. EASY REPLACEMENT: With automatic voltage and current regulation, this LED TV backlight tester can find defective LEDs on light strips in seconds. If there is a problem with the LED light bar, you can replace the bad LED light bead. The perfect backlight inspection and maintenance tool for any size LED TVSpecification:Item Type: LED TV Backlight TesterModel: CB250Material: ABSOutput Current: DC 0-25mA.Package List:1 x Tester2 x Tester Pen1 x Cable1 x User Manual