Our versatile LED Tester is designed for maintenance and testing of various LCD TV LED backlights, LED light fixtures, and LED advertising light boxes. Whether you're working with small light beads or larger setups, this device ensures precision and ease of use. Features: Two levels of current settings: Use the MIN MODE for testing a small number of light beads. Easy operation with a single button for on/off functionality. Adaptive voltage and current output, requiring no manual adjustments. Display support for output voltage readouts. Capability for single light bead illumination tests. Test TV LED backlights without disassembling the screen. Short-circuit protection for test pen electrodes. Specifications: Material: Durable plastic Input Voltage: AC 220V, 50 Hz Output Voltage: DC 3-180V Item Size: 141 x 98 x 39 mm / 5.6 x 3.9 x 1.5 in Item Weight: 186 g / 6.6 oz Package Size: 175 x 120 x 60 mm / 6.9 x 4.7 x 2.4 in Package Weight: 297 g / 10.5 oz Package Includes: 1 LED Tester 2 Test Pens 1 User Manual