Castor is the first pure LED bollard luminaire in the ERCO portfolio. Two light distributions and two sizes enable differentiated lighting design using a single range of luminaires. An innovative optical system with a ring-shaped lens spreads the light 180° onto pathways or, alternatively, a full 360° for open areas. The luminaires can be spaced up to 10m apart, producing highly precise and uniform light without compromising on the glare control. The ERCO Dark Sky technology prevents light from being emitted above the horizontal plane.