The LED ring light is designed especially for stereo microscope, and is an excellent companion for various types of microscopes and camera. Features: 144pcs LED lamp beads provide luminance from 30,000lx to 40,000lx. Give intense and focused shadow-free lighting for clear observation. Provides an optimal amount of lights to the microscope or camera when additional light sources are needed or there was not enough light! Inspection and quality control are no longer a problem to see surface defects and overcome related visibility issues. It can also be used as a light source for cameras to focus while hunting watching in dark places or areas. Adjustable brightness from 0% to 100%, easy to control the intensity of the LED light. The well-made ring light Features long lifespan up to 100,000 hours. Suitable for lens diameter 30mm-63mm. Features: Material: Plastic Plug type: EU Plug Input: 100V-240V AC, 50/60Hz Output: 12V DC Power: 4W Luminance: 3000lx ~ 40000lx (within 80mm distance) Connector size: 61mm Dimmable brightness: 0 ~ 100% Effective Distance: 50~250mm Clear Aperture: 60.5mm Item Size: 9.3*6.3cm/3.66*2.48in