This is a 144-LED intensity direction adjustable ring light with mounting size up to 2-12 in- 64 mm- in diameter- The light ring is consisted of 4 individual portions 4 lighting zones that can be turned onoff separately- You may use the feature to change lighting directions and obtain the best illumination for your application- The ring light has 2-12 in- 64 mm- inside and 4 in- 100 mm- outside diameters- It works with power supplies from a 110-220V and comes with a 1-78 in- 48 mm- in diameter ring adapter- With variable intensity control, it provides cool, even, intense and focused shadow-free illumination- It is an ideal durable cool light source for all stereo microscopes, especially for gemological, coin and gemjewelry microscopes-Features- 144 bright white LED bulbs-- Lighting direction changeable-- Variable intensity control-- Intense and focused shadow-free illumination-- 100,000 hours of life-- Power input - 110-240v, 50-60hz, auto switching-- Fits up to 2-12 in- 64 mm- mount rings-- Inside diameter of the ring light - 2-12 in- 64 mm-- Outside diameter of the ring light - 4 in- 100 mm-- Dimension - 10 x 5 x 2 in- SKU: UNSCP267
