Brand new and high quality. Feature: 0-300V adaptive voltage. Automatically adapts voltage during testing, preventing damage to the lamp. Digital display shows real-time voltage output. Internal adjustable voltage with self-correction capability. Heat and cold isolation, ensuring no electric shock. Integrated power cable and box design for easy portability. No need to disassemble the screen. Do not look directly at the beads during testing to avoid eye damage. Automatically adapts to voltage and current. Automatically identifies lamp beads and light bay. Can test various types of light beads, light boards, and light bars to determine functionality. Features an operating voltage function to identify exact issues. Lights up dual LED light bars for backlight. Specifications: Model: DLV-300 Plug: US, EU (Optional) Color: As shown Feature: Backlight AC input: 85-265V DC output: 0-300V Size (approx. L x W x H): 100 x 37 x 58mm Note: 1cm = 10mm = 0.39inch. Allow 0-3cm error due to manual measurement. Please ensure you are okay with this before purchasing. Due to differences between monitors, the picture may not reflect the actual color of the item. Thank you. Package Includes: 1 x LED Tester 2 x Gold Plated Pin 1 x Power Cable