Lighting Equation:
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The lighting calculation estimates the total wattage needed for a space based on its area and the required watts per square foot. This helps in planning proper illumination for various settings.
The calculator uses the lighting equation:
Where:
Explanation: The equation provides a basic calculation for determining lighting requirements in a given space.
Details: Proper lighting calculation ensures adequate illumination for tasks, enhances safety, and helps in energy-efficient design.
Tips: Enter area in square feet and required watts per square foot. Both values must be positive numbers.
Q1: What's a typical watts per sq ft value?
A: It varies by space type: offices 1-2W/sq ft, retail 3-5W/sq ft, kitchens 4-6W/sq ft.
Q2: Does this account for LED efficiency?
A: No, this is a basic calculation. For LEDs, you may need fewer watts for equivalent brightness.
Q3: Should I include natural light?
A: This calculates total artificial lighting needs. Natural light can reduce requirements.
Q4: Are there standards for lighting levels?
A: Yes, organizations like IESNA provide recommended light levels for different spaces.
Q5: How does ceiling height affect this?
A: Higher ceilings may require more powerful fixtures, which isn't accounted for in this basic calculation.