Portable LED tester, made of material, is a practical device for testing LEDs. It lets you easily determine the brightness and luminous color of LEDs by inserting them into the labeled holes and pressing the button. Wide current range - Top row is designed for 2-pin LEDs with a current range of 2 mA to 30 mA. - Bottom row is for 4-pin LEDs (Piranha LED) with a current range of 20 mA to 150 mA. Compact and lightweight - Small and easy to carry. It is powered by a 9V battery (not included), making it suitable for travel and field use. Easy to use - User-friendly operation with labeled holes for accurate insertion. Quickly test brightness, luminous color, and more by pressing a button. Use scenarios - On the workbench during prototype development to verify LED brightness and color. - In field service to troubleshoot LEDs in devices and confirm operation. - For electronics hobby projects or repairs where quick LED checks are needed.