This site is intended for educative use only.
Although we strive for the information and data presented on this site to be as accurate as possible, we do not guarantee that the information and data on this site are correct.
Use this site, its data, and tools at your own risk.
In specific, the data, text, and calculation methods referencing recommendations by Standard Organizations such as the International Commission on Illumination (CIE), or any other Standards Organizations, have not been endorsed, qualified, or approved by these Standard Organizations.
Please consult their documentation and standards for authoritative methods and recommendations.
If you find any deviations or errors, please help to improve this site by reporting them to us using the contact form
Please be also aware that light and color measurements are difficult and depend on many factors, most of them beyond the scope of this site and its applications.
If you have a professional lighting or color issue, please consult a specialist.