Noxion LED Downlights come in standard sizes so that they can be easily installed in ceilings. They're suitable for use in different areas. A colour temperature of 4000K is recommended for use in offices. Thanks to LED technology, Noxion LED Downlights are much more efficient than ones that use older PL/Dulux bulbs and that means lower energy costs! They last much longer too. Dali-compatible models are also available.