This intensity-adjustable 96-LED ring light comes with mounting size up to 50mm in diameter. The ring light has 1-7/16 (36mm) inside and 3 (78mm) outside diameters. It works with power supplies from 110V to 240V. With variable intensity control it provides cool even intense and focused shadow-free illumination. It is an ideal durable cool light source for microscopes. This kit comes with one year warranty against manufacturing defects. **Note: It is designed to only fit our H800 inspection microscopes so custom applications for other units are not guaranteed to fit.** Features & Specifications: 96 bright white LED bulbs 100 000 hours of life Intense and focused shadow-free illumination Variable intensity control Mounting size: up to 50mm in diameter Inside diameter: 1-7/16 (36mm) Outside diameter: 3 (78mm) Power input: 110-240V 50-60HZ auto switchingPacking List: One 96-LED Ring Light One Control Box One Power Cable