Overview: The 144LED ring light is designed especially for stereo microscope, and is an excellent companion to various kinds of microscopes and camera. It can offer an optimum amount of lights to the microscope when additional light sources are required. Inspection and quality control is no longer a problem. It can also be used as a source for cameras to focus while hunting in dark places or areas. Features: Made of high quality LED bulbs and plastic material, not easy to damage, durable in use. Intense and focused shadow-free illumination The brightness of 0-100% adjustable, high brightness. It can offer an optimum amount of lights to the microscope when additional light sources are required. Widely used in stereo microscopes and cameras auxiliary lighting, the effect is very good. Specification: Material: Plastic Weight: 254g/9oz Plug Type & Voltage: EU Plug, 220V Interface size: 61mm Brightness: more than 18000LUX Dimming: luminance 0~100% Working distance: 40-250mm Power: 4.5W Input: 90V-240V Output: 12V /0.5A LED Light Beads Quantity: 144pcs Power Adapter: 12V /0.5A Ring Adapter Size: Approx. 9.8cm /3.9inch(Outer diameter), 6.1cm/2.4inch(Inner diameter) Size: Approx. 12.5 x 9.8 x 3cm/4.9 x 3.9 x 1.2inch Package List: 1 x LED Ring Light Lamp 1 x Power Adapter .