1. What is an LED Recessed Lighting Calculator?

Definition: This calculator determines the number of recessed LED lights needed for a space based on desired illumination level, room area, and light output.

Purpose: It helps homeowners, designers, and electricians plan optimal lighting layouts for residential and commercial spaces.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( FC \) — Desired illuminance in foot-candles
• \( \text{Area} \) — Room area in square feet
• \( \text{Lumens per Light} \) — Light output of each fixture

Explanation: The total required lumens (FC × Area) is divided by the output of each light to determine how many fixtures are needed.

3. Importance of Proper Lighting Calculation

Details: Correct lighting ensures adequate illumination for tasks, enhances room aesthetics, and improves energy efficiency by avoiding over-lighting.

4. Using the Calculator

Tips: Enter desired foot-candles (default 30 for general lighting), room area in square feet, and lumens per light (default 800 for standard LED recessed lights).

5. Frequently Asked Questions (FAQ)

Q1: What are typical FC values for different rooms?
A: Living rooms: 10-20 fc, Kitchens: 30-40 fc, Bathrooms: 70-80 fc, Offices: 30-50 fc.

Q2: How do I find my room's area?
A: Multiply length by width (in feet). For irregular rooms, divide into rectangles and sum the areas.

Q3: What's the average lumens for recessed LEDs?
A: Typically 600-1200 lumens. Check your fixture's specifications for exact values.

Q4: Should I round up the result?
A: Yes, the calculator automatically rounds up since you can't install a fraction of a light.

Q5: Does this account for light loss factors?
A: No, consider adding 10-20% more lights for rooms with dark surfaces or high ceilings.