1. What is a WLED Power Supply Calculator?

Definition: This calculator estimates the required power supply wattage for WLED pixel lights based on the number of pixels and their power consumption.

Purpose: It helps LED lighting enthusiasts and installers determine the appropriate power supply size for their WLED installations.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{supply} \) — Required power supply wattage
• \( P_{pixel} \) — Power consumption per pixel (watts)
• \( N \) — Number of pixels
• 1.2 — 20% safety margin factor

Explanation: The total power requirement is calculated by multiplying power per pixel by number of pixels, then adding a 20% safety margin.

3. Importance of Proper Power Supply Calculation

Details: Correct power supply sizing ensures stable LED operation, prevents voltage drop, and avoids potential damage to components.

4. Using the Calculator

Tips: Enter the power consumption per pixel (default 0.06W for typical WS2812B at full white) and the number of pixels in your installation.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a 20% safety margin?
A: The margin accounts for power supply efficiency, voltage drop over long runs, and potential peak power demands.

Q2: What's a typical power consumption per pixel?
A: Most addressable LEDs consume about 0.06W per pixel at full white (20mA at 5V), but this varies by LED type and color.

Q3: Should I use the maximum possible power consumption?
A: Yes, calculate based on full white brightness for worst-case scenario, unless your application never uses full white.

Q4: What if I'm using different types of LEDs?
A: Calculate each type separately and sum the results, as different LEDs may have different power requirements.

Q5: How do I account for multiple power injection points?
A: This calculator gives total power needed. Divide by the number of injection points to determine power supply size for each.