OUR TECHNOLOGY
Good light
starts with nature.
Sunlight is our reference. We look to its spectrum, the way it reveals color, and how it brings a room to life.
At Sunlipro, that reference guides our approach to lighting for the home.
Explore the light

MORE THAN BRIGHTNESS
See your home
in a different light.
Two lights can look equally bright and still make a room feel different.
The colors of your food, the texture of a fabric, and the appearance of skin all depend, in part, on the light falling on them. We consider these everyday details from the beginning.
THE SPECTRUM
A closer look
at the light.
White light contains a range of wavelengths. The balance between them helps shape how colors appear.
lipro Light

Conventional LED

Fluorescent Light

Dashed line: sunlight reference. Horizontal axis: wavelength in nanometers (nm). Illustrative comparisons from lipro Japan, not measurement plots for the U.S. Sleep Light.
HOW IT STARTS
A different starting point.
lipro’s natural-light technology uses violet-excited, full-spectrum light sources in selected products, with sunlight as a reference for their spectral design. Source design, optics, and the finished product all contribute to the light you experience.
COLOR, AS YOU KNOW IT
Let familiar colors
look familiar.
Color rendering describes how faithfully a light source reveals colors compared with a reference.
For us, this is more than a number. It is about the red of a tomato, the tone of natural wood, and the fabrics you chose for your home.
Ra
A commonly used measure of color rendering.
Rf / Rg
Measures of color fidelity and the size of the color gamut. They describe different aspects of how a source renders color.
MEASURED, EXPLAINED
The numbers.
And what they mean.
Results from lipro’s established lighting range. Each measurement belongs to the named product and test conditions.
94.86%
Spectral similarity
A measured spectral fit to the selected reference across 425–650nm.
lipro E2 Max ceiling light
Measurement details
Sample 6735133, measured at 4706K and 220.03V. Report 4791139120_1, pages 5–6. The report uses its stated TM-30-20 reference selection methodology. This is an optical measurement, not a percentage of sunlight or a measure of health benefits.
Ra97+
Color rendering
High measured color rendering across the brightness settings included in the report.
lipro T23X1-W0753050-P ceiling light
Measurement details
Report WTS2023-17323-1, pages 5–7. Ra is above 97 at the listed 25%, 50%, 75%, and 100% brightness settings, tested at 3000K, 4000K, and 5000K. Results apply to the tested ceiling-light model.
RG0
Blue-light risk assessment
The tested model received an RG0 classification under the report’s blue-light hazard assessment.
lipro T23X1-W0753050-P ceiling light
Measurement details
Report WTS2023-17323-2, conclusion on page 2. Assessment under GB/Z 39942-2021. This result concerns blue-light hazard under the stated test conditions; it is not a blanket certification of every Sunlipro product or a claim of health benefits.
These ceiling-light results are part of lipro’s technical foundation. They are not specifications or certifications for the current U.S. Sleep Light.
DESIGNED FOR HOME
From the light source
to the room.
The light source is one part of the experience.
Optical design shapes how light spreads. Diffusers soften its appearance. The form of a lamp and the way you control it determine how naturally it fits into everyday life.
Our approach brings these decisions together.
Our Story

MEET SLEEP LIGHT
Begin at
the bedside.
Warm 3000K light, a generous upper touch surface, and a gradual fade when you are ready for lights out.
Our starting point at the bedside—and part of a broader vision for light throughout the home.
Explore Sleep Light