1. What is LED Lumens to Watts Conversion?

The LED Lumens to Watts conversion helps determine the power consumption (watts) of an LED light based on its brightness (lumens) and efficiency (lumens per watt). This is useful for comparing LED lights with traditional lighting and calculating energy usage.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• Lumens — Measure of light output (brightness)
• LED Efficacy — Light output per watt of power (lumens per watt)

Explanation: The formula divides the total light output by the efficiency to determine the power required to produce that light.

3. Importance of LED Power Calculation

Details: Understanding the power requirements of LED lighting helps in energy planning, cost estimation, and comparing different lighting options for efficiency.

4. Using the Calculator

Tips: Enter the lumens value from your LED light specification and the efficacy rating (typically 80-150 lm/W for modern LEDs). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's typical LED efficacy?
A: Modern LEDs range from 80-150 lumens per watt, with high-efficiency models reaching 200+ lm/W.

Q2: How does this compare to incandescent bulbs?
A: Incandescent bulbs typically have 10-17 lm/W, meaning LEDs use about 10% of the power for the same light output.

Q3: Where can I find lumens and efficacy ratings?
A: These are listed on LED packaging and product specifications from manufacturers.

Q4: Does this account for driver losses?
A: No, this calculates theoretical LED power. Actual system power will be slightly higher due to driver inefficiencies.

Q5: Can I use this for LED arrays or fixtures?
A: Yes, if you know the total lumens and efficacy of the complete fixture.