Quality, Value, Experience from Trusted UK Seller As well as having an appealing design, the modern MEDO RING impresses with efficient and powerful LED modules that are also dimmable. The aluminium frame is fitted with an acrylic glass cover which provides bright and uniform illumination. Its 1.5 metre pendant length makes it ideal for rooms with high ceilings. The built-in LED driver makes direct connection to a 120V to 240V mains supply possible.