What is a Kelvin?Put simply, LED colour temperature is measured in 'Kelvins' (K), and it's Kelvins that determine what shade of white light your bulbs beams, ranging from 'warmer' colours reminiscent of traditional incandescent bulbs, to 'cooler' colours that are whiter in tone.
What are LED colour temperatures?There are 4 main LED light colours to choose from, each with a different kelvin rating: • Very warm white (under 2700K) • Warm white (2700-3200K) • Daylight (4000K-5000K) • Cool white (5500K-6500K) In short, the higher the kelvin rating the 'whiter' the light, which brings us onto wattages and lumens. The brightness of a bulb is measured in lumens – the higher the lumen value, the brighter the bulb. This in turn means that cooler shades of white light – such as cool white – have higher lumen values. Traditionally, people bought bulbs with higher wattages to project a brighter light. In the world of LED lighting, you need to look for a combination of lumens and kelvins. Lumens actually offer a far more accurate measurement of brightness than wattage values alone. In fact, an LED bulb can emit the same amount of lumens as a halogen equivalent while consuming a tenth of the energy. To get an idea of how traditional halogen wattages compare with that of modern – and energy saving – LED wattages, see an example in our table below:
|Fitting||LED wattage||Halogen Wattage||Lumens||Kelvins|
How to choose the perfect colour temperatureThe beauty of being able to shop-by colour temperature means you can choose from an array of subtle shades and tones to complement and illuminate any home décor. While there's no hard-and-fast rule with what LED light colour temperature you choose, our quick guide will give you a good idea on where to start.
Warm white: for subtle, homely tones
Warm White LED Lighting
Very Warm White LED Lighting