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Cetus / CETUS3 L 3000-840 HF E3D RWH


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  • Base: 92943880 — CETUS3 L 3000-840 HF E3D RWH

Data Sheet

A low height, recessed LED downlight. Suitable for ceiling cut-outs Ø190-230 mm for easy refurbishments or fast initial installations. Remote, pluggable, Fixed output LED driver with 3 hour, Self/DALI Addressable test, emergency lighting circuit. 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, IP43_IP20. Spring clips suitable for ceiling thicknesses from 1 to 35 mm. Complete with 4000K LED

For installation in concrete ceilings please contact sales

Dimensions: Ø248 x 100 mm
Luminaire input power: 25.4 W
Luminaire luminous flux: 3463 lm
Luminaire efficacy: 136 lm/W
Weight: 1.21 kg

Mode selection
  • Lamp position:STD - standard
  • Light Source:LED
  • Luminaire luminous flux*:3463 lm
  • Total emergency luminous flux:490 lm
  • Luminaire efficacy*:136 lm/W
  • Colour Rendering Index min.:80
  • Correlated colour temperature*:4000 Kelvin
  • Chromaticity tolerance (initial MacAdam):3
  • Rated median useful life*:L80 50000 h at 25 °C
  • Ballast:1x EL2 FP LC
  • Luminaire input power*:25.4 W Power factor = 0.94
  • Charging power:2.4 W
  • Dimming:FIX
  • Maintenance category CIE 97:C - Closed Top Reflector
  • LED
  • CE
  • EAC
  • NoIsol
  • GLedReP
  • 850°
  • Hfree
  • IK03
  • IP43_IP20
  • LLedReP
  • RCM
  • RG1
  • SC2 - Protection Class 2
  • Ta = +5 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