The DL® 500 outdoor luminaire in two construction sizes (MIDI, MAXI) for mast or catenary mounting is characterised by a modern design, high quality materials (luminaire housing of diecast aluminium) and excellent workmanship. Equipped with state-of-the-art lighting technology and precise optics, the luminaire offers outstanding solutions in relation to energy efficiency, luminaire spacing, light quality and service life. The optical system consists of a high performance radial facetted reflector and high grade luminaire enclosure. It is available either in the form of a transparent PMMA enclosure or as a cover panel of toughened safety glass designed for maximum light spill reduction. The highly efficient optics, combined with HST/HST or HIT-CE lamps, allow implementation of large luminaire distances with homogenous illumination. The DL® 500 catenary luminaires are equipped either with a symmetrical reflector (MAXI) or radial facetted optics (MIDI, MAXI) for the fulfilment of specific lighting requirements. The DL® 500 is highly suitable for the illumination of service and collection roads, main thoroughfares and residential areas. Versions of DL® 500 for railways are specified in Section 4 (Luminaires for special applications). Despite its robust construction and high IP65 protection rating, the DL® 500 is easy to handle: the lamp cover is hinged downwards by releasing two robust twist-lock catches. A further twist-lock catch secures the gear tray with lamp socket and lamp that can also be folded downwards. This cuts off the power supply; maintenance and control work as well as gear tray replacement can be carried out without danger. The efficient radial facetted reflector for extremely wide, asymmetrical light distribution can be variably positioned: it is adjusted via simple pushing in the horizontal plane, thus allowing it to be precisely matched to the specific lighting task at hand. |