Round or square, slim rectangular lamp made of aluminium; +/- 10° rotatable; surface black or natural anodised; plug and play electrical connector system for toolless mounting; beam angle 132°; passively cooled high-power LED system; available in the light colours 3000 K and 4000 K; min. 90 % of the luminous flux after 50000 operating hours; colour rendering CRI ≥ 95, R9 > 90; 350 mA converter plug and play; converter separately available; degree of protection IP 20; PC I / PC II (power supply) or PC III (light insets); optionally non-dimmable or DALI-2 control