Arena is an energy efficient surface mounted IP23 luminaire for use in industry and storage. It is easy to install with hinged gear tray, and can be mounted either direct on ceiling (screws) or by using the mounting hooks for horizontal wiring. Arena is available in two lengths and with three different light distributions. Light distribution Direct (Wide) Light technic LED 57W 4000K Ra>80 SDCM 3 L90/B10 >70,000 hrs L80/B20 >100,000 hrs Control/Dimming DALI Protection Class I IP23 IK08 Energy and approvals CE Materials and finish Housing: Sheet steel Colour: White (RAL 9010, 20% gloss) Optics: PMMA Mounting/Connection Suspended or surface, Indoor Cable entry: end caps (knock out) 5 pole screwless terminal block Max. luminaires per circuit breaker: B10: 12, B16: 21, C10: 19, C16: 34