B Ring Medium year 2018 project Hotel typology Eight different pendant luminaires with light emission on two sides (direct light and indirect light) mounting To ceiling with steel wire ropes (included) diameter 600 mm / 23.62" -  800 mm / 31.50" - 1200 mm / 47.24" -  1500 mm / 59.06" height 60 mm / 2.36" width 60 mm / 2.36" construction Aluminum. Diffuser in polycarbonate finishes Brushed champagne ingress protection IP20 lamp quantity 2 lamp type LED array on printed circuit board. DALI remote power supply lamp wattage 600 mm: 52W - 800 mm: 76W - 1200 mm: 120W - 1500 mm: 150W special features Diffuse and completely homogenous light distribution across the entire surface. DALI dimmable colour temperatures 3000K CRI93 lumen maintenance 50.000hrs lifetime with lumen maintenance at L70 dimming options DALI certifications CE