Feature: 1. WIDE USAGE: LED TV backlight tester can be used to test LED lamps, LED panels, individual LED beads, COB light sources, LED TV backlights, monitors, computers, etc. 2. SUPERIOR QUALITY: LED tester adopts high speed microcontroller to do voltage sampling test and drive LED light to display voltage, realizing board integration and reducing defect rate. 3. SAFETY: 0‑300V adaptive voltage, suitable for most series and parallel lamp bead testing. it adopts a progressive start method, the voltage automatically adapts to the current gradually increasing, will not burn the lamp beads 4. ADJUSTABLE: The LED TV backlight tester uses a digital display with real time voltage output, with adjustable voltage and self‑calibrating voltage values. 5. INTEGRATED DESIGN: LED TV backlight tester can be isolated from hot and cold ground, so it will never be electrocuted. The power cord and case are integrated for easy transport on the go. Specification: Item Type: LED Backlight Tester Material: ABS Input Voltage: 85-265V Measurable Voltage Range: 0-300V Measurable Current Range: 40-60mA Power: 25W. Package List: 1 x LED Backlight Tester 2 x Test Pen