D7R3RBB/N2CHS

Linear downlight with round edges, black housing.
LED • 4000 K • CRI (Ra) 80
LED+LENS™ • black cups, polycarbonate • wide-angle
<= 22
1100 lm
96 lm/W
94% @ 50khrs (Tq=25°C)

CRI 90

Most of our products are also available in CRI (Ra) 90.

Please contact our sales department for more information

LLMF

The figure that reflects the drop in luminous flux of the light source (LLMF) takes into account failing LEDs, and deterioration of the light output over time. How do we determine this LLMF? We distinguish between the service life of LEDs at the component level and at the luminaire level.

At the component level we take into account the gradual deterioration of the luminous flux of the LEDs (parametric failure or B-lifetime), and the potential breakdown of LEDs (catastrophic failure or C-lifetime). At the luminaire level the complete failure of a luminaire is not relevant (see Luminaire Survival Factor). The LLMF corresponds with the B-lifetime at the luminaire level and hence takes on board the parametric as well as catastrophic failure of the individual LEDs in the luminaires.

In order to achieve an accurate, reliable LLMF for our luminaires, we carry out a ‘principal component analysis’:

  • We determine the parametric failure at the component level in accordance with objective LM80/TM21.
  • We are unable to calculate the catastrophic failure, but prefer to collaborate with manufacturers who make accurate data available. Whenever no measurement data are offered, we depend on electronic reliability models (MIL-HBK-217F)

UGR

Unified Glare Rating

This is an approximate model expressing the risk of glare.

The standard values range from UGR 16 (low risk of glare) to UGR 28.
In the standard for workplace lighting EN12464-1, limit values for UGR are imposed for various rooms.

Unified Glare Rating

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Tender description

D7R3RBB/N2CHS Linear downlight with round edges, black housing. Led+lens™ optics, black cups, polycarbonate, wide-angle light distribution. 3 lenses recessed in circular lens cups. Dimensions: 235 mm x 95 mm x 40 mm. LED+LENS™, a combination of high performance LEDs and individual lenses with a patented surface structure. The lenses are recessed in small cups for a comfortable light experience. Luminous flux: 1100 lm, Luminous efficacy: 96 lm/W. Power: 11.5 W, not dimmable. Frequency: 50-60Hz AC. Voltage: 220-240V. Electrical isolation class: class II. LED with very good light maintenance; at 50000 hrs the luminaire retains 94% of it's initial flux (Tq=25°C). Correlated colour temperature: 4000 K, Colour rendering ra: 80. Colour consistency (McAdam ellipse): ≤ 3 SDCM. LED+LENS™ with UGR <= 22 conform norm EN 12464-1 for moderate visual and concentration demands. Photobiological safety IEC/TR 62778: RG1. RAL9005 - black. IP protection level: IP20. Replaceable (LED only) light source by a professional. Replaceable control gear by a professional. Energy efficiency class of the light source according to EU regulation 2019/2015: E. Glowwire: 650°C. 5 years warranty on luminaire and driver. Certifications: CE, ENEC. Luminaire with halogen free leads. The luminaire has been developed and produced according to standard EN60598-1 in a company that is ISO9001 and ISO14001 certified.