USB powered LED ring light illuminator for stereo microscopes, available with 64, 72, or 144 LEDs. Designed to provide uniform, adjustable lighting for detailed work in laboratory research, electronics , jewelry appraisal, and industrial inspection. Key benefits Uniform, shadow illumination that improves visibility of fine details. Adjustable brightness for matching lighting to sample size and working conditions. Low energy consumption and long LED life for reduced maintenance and reliable daily use. USB powered for simple connection to USB ports, power banks, or adapters. Compatible with monocular, binocular, and trinocular stereo microscopes for flexible use. Features LED options: 64, 72, or 144 LEDs to suit different magnification and lighting needs. Housing material: durable ABS for a lightweight and robust mounting ring. Easy to install on most stereo microscope heads, enabling quick setup and replacement. Compact size: 12 x 10 x 3.2 cm (4.72 x 3.94 x 1.26 inch). Practical applications Jewelry appraisal: reveal gemstone inclusions and metal surface details with even, controllable lighting. Electronics and inspection: illuminate circuit boards and small components for soldering and diagnosis. Laboratory and industrial inspection: enhance contrast and clarity when examining small parts, biological samples, or manufactured components. Package includes 1 set microscope ring light. Notes Please allow a 1 to 3 cm measurement variance due to manual measurement. Product appearance and color may vary slightly from the photos due to differences in monitor displays.