Product Description for LED Lamp Bead and TV Backlight Tester Elevate your electronic repair capabilities with our cutting-edge LED Lamp Bead and TV Backlight Tester. Designed for precision and efficiency, this versatile tool is perfect for diagnosing and troubleshooting LED lights in various applications. Innovative Microcomputer Technology: Our tester uses a high-speed single-chip microcomputer for precise voltage sampling tests, driving the LED lamp to display voltage. Unlike other products that rely on separate voltmeter heads, our integrated board card design reduces the defective rate and ensures consistent current flow and reliable results. Adaptive Voltage Range: With a 0-300V adaptive voltage capability, this tester is ideal for most series and parallel lamp bead tests. It features a gradual startup mode, automatically adjusting voltage and gradually increasing current to prevent burning out lamp beads. Achieve normal brightness in just three to five seconds, even if the polarity is reversed. Real-Time Digital Display: The tester offers a digital display of real-time voltage output with adjustable settings for self-calibration. Using a green light-emitting tube, it clearly indicates "00" for short circuits and "300V" for open circuits. Ensures consistent voltage display for each group of LED light bars in an LCD TV, aiding in efficient diagnostics. Safe and Portable Design: Featuring cold and hot isolation, this tester ensures safety by preventing electric shock. Its integrated design, combining the power cord and machine box, enhances portability, making it easy to carry for on-the-go testing and repairs. Screen Testing Without Disassembly: Our tester allows you to light up the LCD TV screen without removing it. It can illuminate screens even with faulty lamp beads, helping identify voltage discrepancies among parallel groups to pinpoint damaged LED lamp beads quickly and effectively. Upgrade your diagnostic tools with our LED Lamp Bead and TV Backlight Tester. Offering advanced technology, safety features, and user-friendly operation, this device is an essential asset for professionals and DIY enthusiasts, ensuring precise and efficient LED testing and repair processes.