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Privacy Policy
Data, Cookie,
Advertising & User Trust Standards

LumeCircadian respects reader privacy while publishing educational content about circadian lighting, spectral power distribution, flicker standards, and residential lighting practice. This policy explains what information may be collected, how it may be used, and how privacy choices are handled.

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Plain-English Summary

Privacy Summary for Readers

LumeCircadian may collect limited technical information through standard website tools such as analytics, cookies, browser logs, advertising technologies, affiliate tracking, and voluntary contact forms. We use this information to operate the site, understand reader needs, improve content quality, protect the site, and support responsible monetization.

Summary of information collected by LumeCircadian and why it may be used
Data Category Examples Purpose User Control
Voluntary Contact Information Name, email address, message content Respond to reader questions, business inquiries, licensing requests, or advertiser contact Provided only if submitted
Analytics Information Pages viewed, browser type, referring page, approximate location, device category Improve content, navigation, page speed, and technical performance Manage with browser settings
Cookies & Ad Technology Cookie identifiers, ad interaction signals, interest-based ad settings Support advertising, frequency control, fraud prevention, and measurement Use cookie/browser opt-outs
Affiliate Link Data Outbound click tracking, referral IDs, purchase attribution where applicable Credit LumeCircadian for eligible referrals without changing reader pricing Avoid by not clicking affiliate links

Last updated: May 31, 2026 · This policy should be read with our Disclosure Policy and Terms of Use.

Core Privacy Practices

How LumeCircadian Handles Information

This policy is written to be clear for readers, useful for advertising review, and specific to the way an educational lighting-science website operates.

Section I

Information We May Collect

Information you provide: If you contact LumeCircadian by email, form, business inquiry, advertising inquiry, licensing request, or newsletter form, we may receive the information you choose to submit, including your name, email address, organization, website, and message content.

Information collected automatically: Like most websites, we may collect technical information such as IP address, browser type, device type, operating system, referring URL, pages visited, time on page, and general geographic region.

Section II

How We Use Information

Site operation: Information may be used to respond to inquiries, maintain site security, prevent abuse, analyze performance, improve navigation, understand which technical guides are most useful, and develop better educational resources around circadian lighting and residential lighting systems.

Business operations: Information may also support advertising review, affiliate attribution, sponsorship discussions, licensing inquiries, analytics reporting, and general administrative communication.

Section III

How Information May Be Shared

Service providers: LumeCircadian may use third-party services for analytics, advertising, hosting, security, email communication, affiliate tracking, and performance measurement. These providers may process information according to their own privacy policies and contractual requirements.

No sale of direct contact lists: LumeCircadian does not sell submitted reader contact information as a standalone mailing list. Information may be disclosed if required by law, to protect rights, to prevent abuse, or during a legitimate business transfer involving the website.

Cookies · Analytics · Advertising

Cookies, Analytics and Advertising Technologies

LumeCircadian may use cookies, pixels, scripts, local storage, and similar technologies to operate the website, measure performance, analyze reader behavior, support advertising, prevent fraud, and understand how educational content is discovered and used.

Advertising partners may use cookies or similar technologies to deliver, measure, and personalize ads. These technologies can help control ad frequency, detect invalid traffic, measure ad performance, and serve ads that may be more relevant to reader interests. Readers can manage cookies through browser settings and available industry opt-out tools.

Analytics tools may report aggregate information such as pageviews, search referrals, device category, approximate location, and engagement patterns. These reports help improve page quality, accessibility, site speed, navigation, and topic coverage.

Advertising & Affiliate Disclosure Research References →
Cookies
Manageable
Use browser controls to block, delete, or limit cookies
Analytics
Aggregate
Used to improve content, speed, and user experience
Advertising
Disclosed
Ads may use cookies, measurement, and fraud-prevention tools
Contact Data
Voluntary
Only submitted when a reader chooses to contact us
Detailed Policy Index

Additional Privacy Terms

Affiliate Links

  • Some pages may include affiliate links to products, tools, lighting parts, books, meters, or related resources.
  • If you click an affiliate link and make a qualifying purchase, LumeCircadian may earn a commission.
  • Affiliate tracking may involve cookies, referral IDs, or partner attribution systems.
  • Affiliate relationships do not change the price you pay unless clearly stated by the retailer.

Email & Contact Forms

  • If you contact the site, your message may be stored so we can respond and maintain business records.
  • Do not submit sensitive health, medical, financial, or confidential project information through general forms.
  • We may use your submitted information to answer your inquiry, discuss advertising, respond to licensing requests, or provide support.
  • You may request deletion of contact information where legally and practically applicable.

Children's Privacy

  • LumeCircadian publishes educational content for adults, homeowners, professionals, and parents.
  • The site is not directed to children under 13 and does not knowingly collect personal information from children.
  • If a parent or guardian believes a child provided personal information, contact us so the information can be reviewed and removed where appropriate.
  • Pediatric lighting content is educational and intended for adult decision-makers.

Privacy Rights

  • Depending on your location, you may have rights to access, correct, delete, restrict, or object to certain data processing.
  • You may opt out of many cookie-based tools by changing browser settings or using available platform controls.
  • You may unsubscribe from email communication if newsletters or mailing lists are offered.
  • Privacy requests can be submitted through the contact information listed on this site.

Trust, Safety and Data Protection Notes

Security
Reasonable Safeguards
LumeCircadian uses reasonable administrative, technical, and operational measures to protect information. No website, email system, hosting platform, analytics service, or advertising tool can guarantee absolute security.
Retention
Limited Business Need
Information may be retained for as long as needed to operate the website, respond to inquiries, maintain records, comply with legal obligations, prevent abuse, analyze performance, or support legitimate business purposes.
External Links
Third-Party Policies Apply
LumeCircadian may link to PortfolioLighting.net, retailers, standards organizations, research sources, affiliate partners, and other third-party websites. Those websites are responsible for their own privacy practices.
Policy Updates
Changes May Occur
This Privacy Policy may be updated as the site adds advertising, affiliate programs, email features, analytics tools, licensing systems, or other services. The updated date should be revised when material changes are made.

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