High system efficiency of 135lm/W enables energy-saving workplace lighting with only 70W consumption Manual rotary dimmer without sensors Glare-free, homogeneous and shadow-free light distribution / smooth top (uplight: 5500 lm / downlight: 3940 lm) UGR Better contrast reproduction with very good color rendering and constant color temperature (3-Step MacAdam Binning) Metal/aluminum housing Silver similar to RAL9006 with heavy U-steel base 1.8 m connection cable Environmentally friendly delivery of the lamp in a compact package (can be stored on a Euro pallet)