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Daylight Wavelength Technology™

We have spent the last 40 years solving a single problem: how to fix the flawed artificial light that now dominates our indoor lives. Our technology offers a solution. It doesn’t only imitate the colours of daylight at different times, but crucially it closely replicates the full, balanced natural visual spectrum, which is where the magic happens. Click here to see the evidence.


How we bring daylight indoors

  • Standard LED Lights Standard LED Lights Standard LED Lights

    A high-fidelity foundation

    The harsh blue spike in standard blue LEDs creates glare that reduces clarity and causes us to strain. This is what makes LED car headlights hard to look at.

    Our technology is built around a rare specialist purple LED; a deliberate choice to eliminate the primary cause of damaging visual noise at its source.

  • Purple LEDs Purple LEDs Purple LEDs

    The complete spectrum

    Standard artificial lights project a fractured signal, with too much blue and voids where reds should be. This drains contrast, and makes accurate colour rendition impossible, forcing our brains to work harder to decode the words and colour hues on a page.

    A recipe of phosphors rebuilds this missing information, delivering a full, continuous spectrum. Eyes get the complete picture, and the brain doesn't have to work so hard.

  • Serious Lights Serious Lights Serious Lights

    Proven fidelity

    Brightness is not a measure of light quality. The old CRI metric cannot be relied upon when it comes to LEDs. Only the international TM-30 standard offers us an accurate, rigorous test for LED light fidelity.

    The data is clear: a colour fidelity score of 98/100 and a deep red rendering score of over 90. Objective proof behind why text appears crisp, colours true and the feeling that your eyes can relax.

    View the Lab Report ->


The Serious Difference

  • 30 Day Trial

    30 Day Risk-Free Trial

    Free UK Mainland Collection

  • Trusted by Opticians

    Trusted by Opticians

    Recommended by 500+ optometrists

  • Daylight Wavelength Technology

    Bring Daylight Indoors

    Daylight Wavelength Technology™

  • 5 Year

    5 Year Warranty

    On HD Pro, Original and Essential Lights

Customer Reviews

  • 5 stars

    It's like reading in intense daylight, but without any glare or stray reflections - fantastic!

    Mr. Hambidge, Milford Haven

  • 5 stars

    I can see more easily with less eye strain because the light is much more like daylight.

    Miss. Chatterton, Lincolnshire

  • 5 stars

    When sitting under this light it feels as though you are bathed in sunlight. Well worth the money.

    Mrs. Nicholls, Shropshire


Our Best Reading Lights

High Definition Pro Floor Light

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For those who want more

  • Everything the Original offers
  • Cordless option, no cable needed
  • Remote control upgrade
  • Filters for sensitive eyes
  • Upgrade it, not replace it


See like a pro

  • 12x more light on the page
  • Fine print to broadsheet beam
  • Stepless dimming with memory
  • Cordless: 6 hours per charge
  • Remote control option
From £499.99
Order Now

High Definition Pro Table Light

Order Now

For those who want more

  • Everything the Original offers
  • Cordless option, no cable needed
  • Control from chair with remote
  • Filters for sensitive eyes
  • Upgrade it, not replace it


See like a pro

  • 12x more light on the page
  • Fine print to broadsheet beam
  • Stepless dimming with memory
  • Cordless: 6 hours per charge
  • Remote control option
From £449.99
Order Now

High Definition Essential Floor Light

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High Definition Essential Floor Light

Entry-level Serious Light

  • Same daylight technology
  • Clearer text, truer colours
  • Read in comfort for longer
  • One beam, nothing to adjust
  • Simple operation


What you get

  • 8x more light on the page
  • Wide beam for reading
  • Press-and-hold dimmer function
  • Classic design
  • Hand-built in Britain
£399.99
Order Now