Home / Products / Indoor Lighting / Downlights / Cetus / Cetus S / CETUS3 S LCS EHF RWH



Change configuration

  • Base: 96635049 — CETUS3 S LCS EHF RWH
  • Accessory: 96635243 — CETUS3 S UGR INSERT

Data Sheet

A low height, recessed LED downlight. Suitable for ceiling cut-outs Ø95-125 mm for easy refurbishments or fast initial installations. Remote, pluggable, Fixed output LED driver with DC functionality. Loop in - loop out possible. Body: die-cast aluminium for thermal management. Diffuser: polycarbonate, smooth reflector in white finish with wide beam. Reflector and trim: high quality, highly reflective polycarbonate. Class II electrical, IP44_IP20, Impact strength: IK06. Spring clips suitable for ceiling thicknesses from 1 to 25 mm.

Equipped with LCS technology, with two lumen outputs and three colour temperatures, selectable from below by a rotary switch.

Dimensions: Ø137 x 80 mm
Luminaire input power: 14.3 W
Luminaire luminous flux: 1509 lm
Luminaire efficacy: 106 lm/W
Weight: 0.4 kg

Equipped with:

  • An anti-glare insert for small size Cetus downlight, for improved glare control in office applications (UGR19 according to EN12464). Material: highly reflective polycarbonate. Finish: specular. Weight: 0.03 kg
Mode selection
  • Lamp position:LCS High 840
  • Light Source:LED
  • Luminaire luminous flux*:1376 lm
  • Luminaire efficacy*:96 lm/W
  • Lamp efficacy:96 lm/W
  • Colour Rendering Index min.:80
  • Ballast:1 x 28003812 DRV TR LC 25W 650mA 38V F #NF SR EXC3 Z
  • Correlated colour temperature:4000 Kelvin
  • Chromaticity tolerance (initial MacAdam):3
  • Rated median useful life*:L80 50000h at 25°C
  • Luminaire input power*:14.3 W Power factor = 0.84
  • Dimming:FIX
  • Maintenance category:C - Closed Top Reflector
  • LED
  • CE
  • NoIsol
  • GLedReP
  • 850°
  • Hfree
  • IK06
  • IP44_IP20
  • LLedReP
  • SC2 - Protection Class 2
  • Ta= -20 to +25
  • UKCA


Photometric configuration


Use CalcExpress to quickly carry out quick online calculations of required indoor luminaire numbers for rectangular rooms. Enter the calculation parameters for your solution such as room dimensions, mounting height, height of the useful plane and required level of illuminance, and the site will instantly suggest a solution according to the light output ratio method.

Step 1: Technical data
Step 2: Room Data
Step 3: Result