72 LED Ring Light: Equipped with 11*11*24 high-efficiency LED beads delivering strong and uniform illumination for clear microscopic viewing experience with conventional white light at 6500K Adjustable Brightness: Features 20%~100% linear dimming control allowing precise light intensity tuning to match specimen requirements and enhance contrast during observation Perfect Fit For Monocular Microscopes: Designed with 50mm inner diameter and 80mm outer diameter metal frame that securely attaches to most standard microscopes for stable performance Long Lasting Performance: Built with high-grade materials and engineered for extended use in labs or educational settings with LED lifespan exceeding 100000 hours Wide Application: Suitable for biological research, classroom demonstrations and hobbyist microscopy providing consistent lighting to improve sample visibility and detail recognition