What does light colour temperature tell?
Light colour temperature is measured in Kelvin units. Kelvin is used in lighting to measure the color temperature of a particular light bulb. Light colour temperature scale goes from red to blue, red being low end at scale (2000K) and blue being at high end of scale (12000-18000K). It has been said that the human eye can detect colour temperatures between 2790 and 11000K. In nature, light colour changes constantly during the day. In the morning, the light is warm red and during late night it is blue, also called as ”blue moment”. Even in different weather conditions, the light colour varies. So if simplified, light colour temperature describes the hue of the light.
What light colours are available in led lights?
Most common light colour temperatures used in led lighting are 2700K ( incandescent, warm white), 3000K (halogen, warm white), 4000K (neutral white) and 5000K (daylight, cold white). LedStore mostly offers lights in colour temperatures 3000K – 4000K, because they are most popular. Recently CCT adjustable lights have become more and more popular.
Our CCT changeable products have typically the light colour temperature range of 2500-6500K. This enables the customer can select the ideal light colour for every mood. These products are actually quite simple. They have two led chips built in, ie. 2500K led chip and 6500K led chip. By mixing the amount of light emitted from each chip, you can create any light colour temperature between 2500K and 6500K. Price for CCT light is nearly the same with regular, single colour lights. Take into account that you will have to invest a bit more to be able to control the light colour temperature. CCT lights mostly require a more expensive controller compared to a regular dimmer.
How to choose a correct light colour temperature?
There is no right or wrong in selecting the light colour temperature. You still might want to consider few things when selecting lights to your home. The most important rule is trust your self! Typical household lights should be something you like yourself and that make you enjoy your home. If you don’t like ”daylight colour” (over 5500K) then don’t choose them just because they are best by someone else.
Our own experience and the sales tells us that most common is still 3000K but little by little people are going more for 4000K led lights. All public projects are typically 4000-5000K.
Before people were scared of white 4000K lights and had only seen them as ”hospital lights”. That is because low quality led lights that were supposed to be 3000K, could actually be very white (even near 4000K). Also most 4000K had very blueish tint as the reds were not rendered well on the lights. That is because those cheap led lights (as well as fluorescent tubes) have bad colour rendering, CRI/RA less than 85. So items presented in that light had greyish or blueish tone. Now that there is high quality, high CRI led lights available. This means your red sofa is red and you don’t look like a ghost in the mirror.
Can I use both 3000K and 4000K colour lights simultaneously?
Of course you can and you should, if you feel like it! There are also some advantages on doing so. In the end it all still comes down to your personal preference and taste.
We recommend using 4000K recessed lights and for pendant led lights, but for table led lamps and other decorative led lights, you can use 3000K. That way you can create different moods easily, without CCT changeable lights and the change can be done without expensive controls. For example when its daytime, you can use natural white ceiling lights to give you a clean and efficient look. When the night falls, you can turn off the ceiling lights and only use your table lamps and other lights to create a soft, warm and cozy feeling. So when its time to relax and watch TV, just use warm mood lights to make your body more relaxed for bed.
It is a known fact that over 4000K, strong and cool light prevents your brains to go to ”sleep mode”. That is why you nowadays have blue light filters in your cellphone and that is why we recommend a different colour evening/night time lighting.
Where to use different colour temperature lights?
Kitchen, utility rooms, foyer, offices, hallways and bathrooms are most commonly lighted with neutral 4000K light. That light colour gives even narrow hallways more roomy feeling and when you look yourself from mirror it gives pure light without distorting the colours. Neutral white light colour is often seen as a clean colour, making bathrooms, utility rooms and other work spaces feeling clean (yeah, you still probably need to clean…).
Warm white led lights are most commonly used in living rooms, bedrooms and outdoors, in patios and terraces. Of course if the living room and the kitchen are open plan, we recommend you to select one main colour temperature for all ceiling lights.
How to match the colour temperature with interior?
And then there is interior colours. Rough rule can be that if all interior colours are warm like brown, red, yellow or lots of wooden surface, the 3000K warm light works better. So for example if your summer cabin has pine wall panels or ceiling, we recommend warmer lighting. If your house decor is modern and monochrome white-grey-black then 4000K neutral light colour is usually better.
How to be sure you selected right light colour temperature?
Remember, your own perception of a cozy and good light is always the way to go! To help you to choose the right light colour temperature for you, come to our shop to look at different lights. You can take some wall paint and wall paper samples, tiles and paneling with you and test them. We have different colour temperature lighting easily accessible. You will be surprised how the colour of your tiles can change depending on light colour temperature.
Most of our led lights have high colour rendering index, so the colour temperature is what is mostly effecting the end result. For example warm led light 3000K brings out the greens in some cold and blue-grey colours, because warm light has yellow hue in it (blue+yellow=green). If it feels hard to select the right colour temperature on the spot, do not worry, we also have some test lights for you to lend!
If you still have some questions, do not hesitate to contact us or come to our shop for more advice!