7 July 2022 By Amy Hooke Off

LED Colour Temperature Chart

What is Colour Temperature?

Light bulbs come in a range of warmth, or shades of white, known as ‘temperature’. Colour Temperature is measured in units known as Kelvins; you’ll often see it displayed as a number followed by a capital K, for example, Warm White 3,000K). Colour temperature ranges from 1,000K to 10,000K, however when it comes to LED light bulbs for cars, boats and caravans you’ll usually see three popular colours; Warm White 3,000K, Neutral or Soft White 4,000K and Cool White 6,000K.

What is the difference between Warm White, Neutral White and Cool White?

Warm White 3,000K is a pleasant incandescent or flame-coloured tone and is the most ambient.

Neutral/Soft White 4,000K has a slight shandy tone to it and is suitable as a work/cabin light

Cool White 6,000K is bluer like daylight and is suitable for bathrooms, kitchens or anywhere that requires properly rendered colours.

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Which colour temperature is most popular in LEDs?

Over the years we’ve seen a slow transition towards Warm White and Neutral White mainly due to the fact that in the early days of LEDs, the Cool White bulbs would turn blue after about 12 months. Thankfully this no longer happens, and you can expect our Cool White LEDs to retain their colour.

Which colour temperature is the brightest?

The human eye naturally doesn’t see Warm White quite as bright as Cool White. In real terms of Warm White bulb has about 90% of the lumens efficiency of a Cool White unit.

What is the best LED colour temperature for boats?

When it comes to marine usage, Cool White lights can be mistaken for stars, making the Warm White your best choice for stern lights, which can be seen clearly as boat lights.