• Circadia 1200x300
  • Circadia 600x300
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Product Design Registration: 202012496



Circadia is a new premium office luminaire family designed for workplace wellness, productivity and sustainability.

With its dual light component design consisting of a diffuse element and a central array of optical chambers, Circadia provides premium quality, low-glare illumination for the modern workplace.

Delivering a sense of comfort, wellbeing and harmony for occupants with minimal energy consumption, Circadia is the product of choice for asset owners looking to achieve or enhance the WELL, Green Star, NABERS or other sustainability performance rating of their buildings.



Innovative optical chamber design delivers optimal wide beam distribution with low glare.

Made from advanced microstructured film that offers controlled batwing light distribution, Circadia’s diffuse element allows for wider spacing with fewer luminaires required in the lighting array, making it a cost-effective solution for new fitouts and retrofit projects alike.

Diffuse aperture also provides a pleasant transition between ceiling and light source.

The product exceeds BCA 2019/J6 requirements via optimised beam distribution.



White optical chambers with internal diffusers form the primary, task lighting component whilst an independent light source is used to create the diffuse peripheral component.



Organic Response Technologies Sensor Node 3 (SN3) is the standard sensor control offering with the Circadia fixed-CCT variants. Other sensor control methods are available upon request.


Circadian Lighting

The combination of LED chips with the right spectral distribution and an optimum beam distribution achieves ideal vertical illuminance levels with high Circadian Stimulus (CS) and Circadian Lighting (Cla) values.



Constant Light Output (CLO) feature comes as standard across the range and ensures that there is no lumen depreciation for the lifetime of the product.


Light Quality

CRI90+ as standard with R9>50, COI compliant (4000K), initial colour consistency better than 3 SDCM. 



Easy to install and an attractive option at only 60mm thickness, the Circadia is suitable for locations where limited ceiling depth is a concern.


Mounting Options

- Recess Kit

- Surface Mounted Kit


Technical Information
Key Family Details
Optical System: Hybrid white optical chambers and diffuser
Mounting Type: Exposed T-bar
Colour Consistency Initial: 3 SDCM
Finish Options: Standard white. Other finish options available
System Warranty: 5 years
CRI (Ra): 90+
CCT: 4000K
R9: 50+
COI Compliant: Yes (=<2.8)
Melanopic Ratio: >0.72
Circadian Stimulus CS [%] (*): 12
Circadian Light Cla [lux] (*): 85
(*): For 150lux corneal illumination. As a guide only.
Marketing Brochure 8.9MB Installation Guide 0.4MB Datasheet 1.9MB Flicker Data 0.8MB Circuit Breaker Data 0.7MB
Custom Datasheet To create a product datasheet tick the checkbox beside the product you want to appear plus any variations. Customisable Product
  Wattage Nom. Size System lm lm lm/W Code
Exposed T-Bar | 4000K | CRI 90+ | 320 Lux Target Illuminance
11 600 x 300 1450 1089 100 EL-CIR-1108-
12 600 x 300 1650 1230 101 EL-CIR-1109-
13 600 x 300 1750 1310 102 EL-CIR-1110-
20 1200 x 300 2850 2166 108 EL-CIR-1100-
22 1200 x 300 3150 2413 109 EL-CIR-1101-
23 1200 x 300 3400 2574 110 EL-CIR-1102-
24 1500 x 300 3450 2689 113 EL-CIR-1106-
30 1500 x 300 4350 3416 115 EL-CIR-1107-
  Wattage Nom. Size System lm lm lm/W Code
Exposed T-Bar | 4000K | CRI 90+ | 400 Lux Target Illuminance
15 600 x 300 2050 1521 103 EL-CIR-1112-
16 600 x 300 2250 1667 105 EL-CIR-1113-
24 1200 x 300 3500 2676 110 EL-CIR-1103-
27 1200 x 300 3900 2968 111 EL-CIR-1104-
29 1200 x 300 4200 3206 112 EL-CIR-1105-
  Variation Suffix
Standard -044
DALI/STD terminal block -244
Organic Response SN3 -954
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