With LED lighting, especially spotlights you may have the option to choose the "light colour", known as " (Correlated) Colour Temperature  (CCT) ". Two examples are "Warm White" and "Cool White". There are no rules - the choice is about personal preference and use. CCT is expressed in Kelvin (K).

  • A Warm White Integral LED lamp will provide a traditional yellowish colour light, similar to conventional bulbs. This is the most popular choice.  (2700-3000K)
     
  • A Cool White Integral LED lamp will provide a modern, clean, bright light, that is slightly blue in colour.(4000-5000K)

find out more about colour temperature