Optic lens microscope ring light 50mm inner diameter optic instrument

ring led light Optic lens microscope ring light 50mm diameter optic instrument Specification: Outer diameter : 66mm Inner diameter: 50mm Wattage:4.5W Input voltage:90V-264V Output voltage:DC12V Brightness adjust:0-100% Working distance:40-250mm Quantity of LED:96PCS Brightness:13000Lux at height of 100mm Color of light:6400K Warranty:1year ring led lamp Features: Focused bright shadow free illumination Matching various microscope bodies in different sizes Variable intensity