The compact, only 70 mm high recessed downlights of the Lunis R® family are characterised by a combination of a high-performance, energy-efficient T16 circular fluorescent lamp and various optical accessories. A special recessed module in the centre of the luminaire accommodates numerous additional components such as loudspeakers, air-handling elements, coloured LED elements or emergency light. The recessed downlight in addition to general room lighting offers targeted accent lighting for retail, office or public areas. Individualised in this way, Lunis R® for ceiling recessing significantly contributes to a harmonious and calm ceiling appearance.

• least possible influence of ceiling appearance due to compact design and purist appearance
• minimised construction height (70 mm recess depth) allows use in compact spaces
• reflector unit separated from electrical unit, can be placed freely in ceiling cavity for minimal ceiling burden
• high luminaire light output ratio (C-louvre)
• tool-free mounting of optical enclosure
• additional functions can be integrated into central module (sensors, air-handling, acoustics)
• with air supply/air discharge, no cooling or soiling of lamps and optical components
• relamping without tools

Modular construction consisting of circular downlight with separate CG unit for placing or suspending in ceiling cavity, various optical enclosures and a large selection of central modules:
Reflector of ultra-pure aluminium (Al99.98%), used also as self-supporting, weight-optimised unit for installing central modules | flat reflector fringe, highly specular anodised, as transition to ceiling |
| three-point fastlock mounting without tools for 2…40mm ceiling thicknesses | louvre of high-grade polymer, aluminized or coated; transparent collector lens of PMMA; opal diffuser of toughened safety glass | louvre and cover installed without tools; the louvre is held with spring catches, the cover via the ring of the central module in the luminaire housing |
Various central modules: optionally with cover of sheet steel; as mounting platform (without cover) for masking of ceiling material; as mounting platform for accommodation of an information panel; with broadband loudspeaker; with LED module or with emergency light function or with supplementary downlight
Stray-light baffle of PC

Luminaire wired ready for connection | separate CG unit with 3-pole connection terminal (ECG DALI or ECG 1…10V: 3-pole + 2-pole for control signal; with single battery emergency light element: 3-pole for normal mains + 1-pole for additional unswitched phase), max. 2.5mm² | CG unit and ring downlight with fixed wiring, length= 0.5m |
Central module with downlight each with separate CG unit |
Central modules with other electrical function, each with own control gear and separate connection terminal

Circular downlight with highly specular reflector system of ultra-pure aluminium AL 99.98%, direct distribution | no light spill to ceiling cavity due to stray light blocker |
The lighting characteristic is defined via supplementary elements:

• CAT2 C-louvre, highly specular iridescence-free vapourised, CAT2(L≤ 1000cd/m²
• C-louvre, wide distribution, metallic grey or pure white coating
• opal diffuser, wide distribution for soft, spacial light
• transparent collector lens, with circular prisms, narrow distribution
• stray light baffle, black (for suppression of stray light in the ceiling cavity)
  Additional accent lighting or decorative colour effects via downlight or LED elements in central module of the circular downlight:
• central module with LED element for decorative colour effects; red, yellow, green, blue, white light; opal colour when switched off
• central module with emergency supply, with opal diffuser, direct distribution
• central module with downlight, optionally narrow, medium or wide distribution