Terms of service
Last updated October 23, 2026.
Welcome to Lumen Tool. By using this website or Lumen Tool, you agree to these Terms.
01About Lumen Tool
Lumen Tool is a browser-based lighting tool for photographers, videographers and artists. It contains dedicated lighting studios, reference tools and the Archive.
Lumen Tool is still being developed. Some features may be incomplete, experimental or changed over time. Using Lumen Tool requires a paid subscription.
02Website and tool use
You may use Lumen Tool to plan lighting setups for personal and commercial work. You are responsible for how you use the results.
You agree not to misuse the website or tool. This means you must not attempt to interfere with its security, availability or normal operation, access systems without permission, upload malicious code, scrape the site in a disruptive way, or use it for unlawful purposes.
03Your setups and content
You are responsible for keeping your own copies of important work. Local projects and downloaded Archive backups can be kept on your own computer. Data processing explains how saved content is handled and retained.
You keep ownership of the setups and content you create or upload. Lumen Tool does not claim ownership of your work.
04Product ownership
Lumen Tool owns the website, product design, interface, branding, software, text, structure and visual design created for the service, unless stated otherwise.
You may not copy, reproduce, resell, redistribute, reverse engineer or misuse any part of Lumen Tool without permission.
05Availability and changes
We aim to keep Lumen Tool useful, stable and available, but we do not guarantee that it will always be available, uninterrupted or error-free.
We may update, change, limit, suspend or discontinue any part of the website or tool as it develops.
06Accounts and signing in
Your Lumen Tool account uses your email address: you ask for a sign-in code or link, we mail it to you, and either can sign you in. There is no Lumen Tool password.
Keep your mailbox secure, because access to your email can also provide access to your Lumen Tool account. Tell us at franck@lumentool.com if you think someone else got in. Session limits and storage details are on the Data processing page.
One account is for one person. Sharing your sign-in so several people can use one subscription is not allowed, and we may end an account that does it.
07Subscriptions and payment
Lumen Tool is available as a monthly or yearly subscription. Payment runs through Stripe, our payment provider.
The current price is shown on the Pricing page and again at checkout. Depending on your market, Lumen Tool may show euro or US-dollar pricing and Stripe may offer local-currency conversion at checkout. VAT or sales tax is calculated during payment, and a business can enter its VAT or tax number there.
A subscription renews by itself at the end of each period, at the price in force at the time, until you cancel. We will tell you beforehand if the price for your plan changes.
You cancel yourself, whenever you like, on your account page. Lumen Tool then keeps working until the end of the period you already paid for, and is not charged again. There is no refund for the rest of a period you have already paid, unless the law where you live says otherwise.
If a payment fails, Stripe may retry it for a limited period. Lumen Tool can stay available while those attempts are in progress. If the subscription ends, Lumen Tool access ends too.
You can delete your account from your account page. Cancel any running subscription first if you want the payments to stop. After a subscription ends, account content is retained temporarily and then deleted as specified on Data processing. Download any work you want to keep before that retention period ends.
08Third-party services
Lumen Tool uses external services to deliver the product. Their processing roles and locations are listed on Data processing. Privacy & cookies explains your rights and analytics settings. The Disclaimer explains the practical limits of simulations.
09Limitation of liability
To the maximum extent permitted by law, Lumen Tool is not liable for indirect, incidental, special, consequential or business losses, including loss of profit, loss of data, lost opportunities or project delays arising from use of the website or tool.
Nothing in these Terms limits liability where it would be unlawful to do so.
10Changes to these Terms
We may update these Terms as Lumen Tool develops, especially when new features or paid plans are introduced. The latest version will be published on this page, and the date above shows when it was last changed.
11Contact
For questions about these Terms, contact us at franck@lumentool.com.
Lumen Tool is operated by Bit Blurry Studio, registered with the Dutch Chamber of Commerce under number 68341784.