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CONTACT

Contact

Questions, corrections and suggestions are welcome.

Get in touch

For questions, corrections, or partnership enquiries, email contact@wled-calculator.com. We typically reply within a few business days.

If you would rather leave a suggestion or report a problem without writing an email, use the feedback form.

Who runs this site

I'm Alex, an electrical engineer with more than 20 years of professional experience, currently working for a global automotive company.

Outside work, home automation is a long-standing passion. I design and build custom sensors and controllers on the ESP32, using ESPHome and programming them from scratch.

I built this site to give the WLED community calculations that are transparent and include sensible safety margins. Every formula is published in full, and corrections are always welcome. See About and How the Calculator Works.

What helps us help you

If you are reporting a wrong result or a confusing recommendation, please include:

  • The tool you used (Power Calculator, Voltage Drop, Running Cost, Simulation Lab).
  • Your inputs: LED strip type, voltage, strip length, LED density, controller and data lead length.
  • The result you saw and the result you expected, with a datasheet link if you have one.
  • Your browser and device, if the page looked broken.

How we handle corrections

Electrical estimates can affect real installations, so mistakes are taken seriously. When a correction is reported we check it against the manufacturer datasheet, update the tool or guide if needed, and record the change on the What's New page.

The formulas behind every result are published on How the Calculator Works, so you can check any number yourself.

Advertising and affiliate links

This site is free to use. It is supported by affiliate links to retailers such as Amazon and AliExpress and may display advertising. Purchases made through affiliate links cost you nothing extra. The calculator results are produced only by the published formulas and do not depend on which retailer links are shown. See the Privacy Policy for how advertising cookies are handled.