Light4U Donar L HE is a high-efficiency fixed downlight for large cut-outs from 210mm to 290mm. It’s the ideal solution for projects where previous lighting layouts resulted in varying ceiling openings. Donar L HE allows you to standardise cut-outs and upgrade lighting performance, with minimal installation effort and the lowest possible mounting costs. With a luminous efficacy of up to 164lm/W and a maximum output of 4150lm, it delivers powerful, low-glare illumination with reduced energy use. Choose from different CCT options based on the project needs.

Beam angles of 15°, 25°, 45°, and 70° support everything from focused task lighting to wide, general lighting. The luminaire offers excellent colour rendering (CRI>90) and consistent performance with 2-step MacAdam binning. Accessories such as frosted glass, clear glass, or a honeycomb louvre enable tailored beam control and glare reduction. Using a honeycomb reduces luminous flux by approximately 20%. Control options include on/off, phase-cut, DALI, or Casambi. Donar L HE is available in white, black, or grey finishes. An IP65 version is available for wet areas. Emergency kit integration and Different connection cables are available upon request.