Conventional LEDs produce light by exciting a phosphor coating by utilizing a high-energy blue wavelength, centered around 450nm. The spike is not a design choice, it was historically, the most energy efficiency way to make LEDs work. It cannot be filtered or removed without sacrificing output. A spike always remains even if CCT or power is adjusting.
The 450nm range sits at the peak of the IEC 62471 blue light hazard function, meaning it carries the highest weighted risk for ocular damage and stress through exposure. People are aware that the light in their phones might be bad, but they discount the lights above their heads. Over 8 to 12 hours of indoor time a day, most people are absorbing far more high-energy blue light that any single source suggests, even if they limit their screen time.
CleanWhite Pure eliminates the 450nm spike entirely by anchoring at 405nm instead. The result is a cleaner spectral base, a higher CRI, and the best photobiological safety rating.
Yes, and it is worth understanding why. Screens are a significant and growing source of blue light exposure in the 450nm range. Unlike overhead lighting, screens are held close to the face for hours at a time.
The cumulative daily dose of high-energy blue light now comes from multiple sources simultaneously: the fixture overhead, the monitor on the desk, and the phone in hand. Reducing blue light exposure in the built environment matters more as screen use increases, not less.
CleanWhite® Pure addresses the architectural source, which is the lighting itself, so the space does not compound the exposure already produced by screens.
Yes. CleanWhite® Pure is certified to IEC 62471 Risk Group 0, the exempt category for photobiological hazard. This means there are no exposure-time restrictions for the eyes or skin. It is designed to operate continuously in spaces where people live, work, and heal. No room clearance, downtime, or waiting period is required.
The 450nm spike is not only a health concern; it is also an optical concern. Because conventional LEDs concentrate energy within a narrow blue band, the remainder of the spectrum becomes compressed. A CRI of 80 reflects that imbalance. CleanWhite® Pure’s cleaner spectral foundation distributes energy more evenly across the visible range, allowing it to achieve CRI 90+ without additional tuning or hardware.
Eight to twelve hours under conventional lighting represents a meaningful dose of high-energy blue light before a single screen enters the picture. The 450nm spike present in every standard LED falls within the same wavelength range associated with retinal phototoxicity, eye strain, and circadian disruption in occupational health literature.
CleanWhite® Pure eliminates that spike at the source, earning the best photobiological safety rating possible under IEC 62471. The result is less cumulative exposure every day, in every room where it operates.
The peer-reviewed studies supporting CleanWhite® technology, along with certifications and testing summaries, are available on request. Reach out and we will share the research most relevant to your facility type, or view our scientific validation data.