LED Lab

Calculators and tools to help you plan your LED strip projects.

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PSU Calculator

Calculate the perfect power supply wattage for your LED strip project with 20% safety margin.

• Supports WS2812B, COB, FCOB and more
• Matrix & strip calculation modes
• Product recommendations with pricing
• Power injection point guidance
• Comprehensive FAQ and methodology

About this site

I built this site because choosing the right components for LED projects can be tricky. It's easy to get lost in specs, safety margins, and best practices that don't always agree with each other.

These tools do the math so you can focus on the fun stuff: actually building your project.