Housing: injection molded in self-extinguishing polycarbonate in RAL9016 colour. Accessory compartment made of white-painted 7/10-thick steel sheet. Optics: secondary lenses in high-performance and anti-yellowing PMMA. : UGR<lt/>16 (up to 24W) - UGR<lt/>19, according to standard EN 12464. Low flicker: luminaire with very low flicker: evenly distributed light for greater visual safety. Photobiological risk: exempt risk group according to EN62471. : EN60598-1. They have a degree of protection according to the EN60529 standard. Equipment: Comfortsquare comes as standard with a presence/light sensor that switches the ceiling fixture on or off whenever it detects presence within its scan range and depending on the amount of the light in the space.