Microscope LED Ring Light 80 LED Adjustable Brightness Microscope Light Source for Stereo Microscopes.Feature: 1. NO SHADOW ILLUMINATION: The LED ring light for microscopes provides strong and concentrated auxiliary lighting, ensuring that observations are clear and devoid of shadows. 2. COMPATIBLE SIZE: With an inner Diameter of 55mm and an outer Diameter of 80mm, please check your microscope lens Diameter to ensure compatibility with this ring light. 3. ADJUSTABLE BRIGHTNESS: This microscope r