PH 5 White Monochromatic.The luminaire provides comfortable and glare-free light, based on the principle of Poul Henningsen's three reflecting screen system which directs most of the light downwards. It emits light in a horizontal direction, as well as glowing with a soft radiance from within its core. The lower shade also features a frosted glass diffuser to ensure that light directed downwards is 100% glare-free. Diameter 50cm by 26.7cm high.