Ultra Long Life LED Luminaire. For maintenance free general, retail and commercial application.


A recessed LED downlight available in 3 lumen outputs to provide a one for one replacement for existing PL lamp downlights. The Sirius is designed as a fit and forget solution and offered in 3K and 4K colour temperatures to suit a variety of commercial applications.

Standard Features

  • Recessed LED downlight.
  • Suitable for recessed mounting and supplied with spring clips.
  • White bezel as standard.
  • Available as colour temperature 3K or 4K.


  • Offices
  • Corridors
  • Stairwells
  • Toilets
  • Schools/Universities

Ambient Temperature Guidance

-10°C to +25°C

SIRIUS Specification Guide

Order Code Wattage Delivered Lumens (ta +25°C) System Efficacy (lm/W) CCT-K H (mm) Diameter (mm) Cutout Diameter (mm) Weight (kg)
SIR10/4K 10W 963 104 4000 70 135 100 0.4
SIR18/4K 18W 1,713 94 4000 80 181 150 0.5
SIR30/4K 30W 2,891 96 4000 105 220 190 0.6

To Order Features

(Add suffix to order code)

LED CCT Options

Colour temperature 3000K
Colour temperature 4000K

Example Order Code

SIR18/4K – A 18 watt LED Sirius Downlight - colour temperature 4000K.

SIRIUS Dimensions

SIRIUS Dimensions

Note: All dimensions are in millimetres.

SIRIUS Photometry

Please contact us for further information regarding this product.

SIRIUS Downloads