Biro Circle ring-shaped LED ceiling light without glare effect The Biro Circle ring-shaped LED ceiling light is made of durable aluminium, steel and plastic. Its modern, clear design and high-quality finish are visually impressive. Even when switched off, it is an elegant eye-catcher and when several Biro Circle lights are combined in large rooms, a homogeneous, slightly futuristic overall appearance is created. The cover of the LED module is opal white, so that this ceiling light does not dazzle despite the powerful LEDs and the very wide beam angle. The first-class LED module, with its wide beam angle, ensures excellent light distribution and generally good room lighting - chromaticity tolerance (initial MacAdam): 3 - very wide beam angle (108 °) - glare-free thanks to opal cover - ballast included - externally dimmable via DALI