Features: 1. Compact & Automatic Voltage Adaptation – Small and handy, it automatically adjusts voltage to match different LED strips. Short-circuit protection prevents damage to the LED beads. 2. Quick Fault Detection Without Disassembly – Easily test backlight issues without removing the TV screen. Saves time and effort during diagnostics. 3. Dual Output Modes & Stable Performance – Offers 0–300V and 0–19V output options with secondary constant current (20mA–50mA). Delivers reliable, steady testing results. 4. Safe & Durable Design – Well-insulated transformer protects against heat, cold, and electrical risks. Built for safe, long-term use. 5. Wide Compatibility – Works with most LED light panels and strips. A practical tool for backlight testing and repair, ideal for technicians. Product Details: This LED TV backlight tester makes diagnosing screen backlight problems fast and simple. No need to disassemble the TV—just connect to detect faulty LED strips or beads in seconds. It features automatic voltage and current adjustment, dual output modes, and short-circuit protection to avoid damaging components. The insulated housing ensures safety during operation. Suitable for various LED backlight testing and maintenance tasks, it’s a reliable helper for repair technicians. Specifications: - Output Voltage: 0–300V / 0–19V dual mode - Output Current: 20mA–50mA secondary constant current - Plug Type: EU Plug (compatible with Indonesia, Germany, France, Spain, Italy, etc.) - Input Voltage: AC 220V - Color: As shown - Material: Plastic - Package Includes: 1 × LED TV Backlight Tester Note: No installation guide included. Professional installation is recommended. Product design may be updated periodically; slight variations between batches do not affect performance. Colors may appear slightly different due to lighting or screen settings. Allowable measurement error: ±1–3 cm.