Circadian Lighting


It's the latest buzz in the lighting industry and, according to some manufacturers, the answer to weight gain, fatigue and chronic diseases, such as cancer and diabetes.

The theory is that by simulating the natural colour of daylight as the day progresses, the body produces the correct levels of the 'sleep' hormone, Melatonin.

However, after looking at the research, we have found little evidence that changing the CCT of lighting throughout the day is worth the investment. And having ten minutes outside is about the best cure for tiredness.

Click Here for our blog on Circadian Lighting

The Emperor's New Clothes?

Maybe. However, the fact is that tuning the colour of any space does change the feel, and thus, ultimately, the behaviour of the people within it. Whether this is learned behaviour or a physiological response, only time and research will tell. What is a fact though is that there is a proven non-visual physiological response to blue light.

And in the work or even home environment, lighting that disrupts the circadian rhythm maybe a problem, especially if you are a night worker. And you should avoid any light whatsoever whilst you are sleeping.

So, if you do require bright, white lighting with a reduced output in the highly sensitive 450-480nm (blue) range we will now be offering violet-pump LEDs as an option in our luminaires.

Spectral Difference Between Blue Pump and Purple Pump LEDs

Please contact us for a quotation

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