Extruded aluminium profile with 110mm wide, visible cut-out; for trimless installation in plasterboard ceilings; with integrated power rail profile on both sides for supply voltage feed; spotlight can be installed and moved without tools by means of magnetic holders; spotlight head rotates 360° and tilts 90°; spotlights individually DALI dimmable; surface powder coated in white or black; optional: Indirect component in the channel continuously adjustable dimming via DALI; passive cooling of LEDs with optimised heat sink geometry; COB (Chip on Board) technology or high power LEDs for maximum efficiency; no multiple shadows; energy-efficient LEDs with very good colour rendering; binning initial ≤ 3 MacAdam; available in the light colour 3000K; CRI ≥ 90; min. 80 % of the luminous flux after 50000 hours; good glare reduction due to recessed light point plane; incl. high quality lens system; or high quality aluminium reflector with spherical facet finish; precise radiation characteristics with different beam angles; degree of protection IP 20; PC I (power supply) or PC III (power rail profile and spotlights); hot plug protection; optional non-dimmable; flicker-free visual comfort through analogue current control (minimum value 1%)