LED High Bay Lighting Calculator

Fixtures Formula:

\[ \text{Fixtures} = \frac{\text{Area} \times \text{Lux Level}}{\text{Lumens Per Fixture} \times \text{Utilization Factor} \times \text{Maintenance Factor}} \]

Area:

sq m

Lux Level:

lux

Lumens Per Fixture:

Utilization Factor:

Maintenance Factor:

Fixtures (number):

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1. What is an LED High Bay Lighting Calculator?

Definition: This calculator determines the number of LED high bay fixtures needed to achieve a specific light level (lux) in a given area.

Purpose: It helps facility managers, lighting designers, and engineers properly illuminate large spaces like warehouses, gymnasiums, and industrial facilities.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{Fixtures} = \frac{\text{Area} \times \text{Lux Level}}{\text{Lumens Per Fixture} \times \text{Utilization Factor} \times \text{Maintenance Factor}} \]

Where:

Fixtures — Number of LED high bay lights needed
Area — Size of the space in square meters
Lux Level — Desired illumination level (lux)
Lumens Per Fixture — Light output of each fixture (lumens)
Utilization Factor — Efficiency of light reaching the work plane (0-1)
Maintenance Factor — Accounts for light depreciation over time (0-1)

Explanation: The formula calculates the total lumens required (area × lux) and divides by the effective lumens provided by each fixture.

3. Importance of Proper Lighting Calculation

Details: Accurate fixture calculations ensure adequate illumination for safety and productivity while avoiding energy waste from over-lighting.

4. Using the Calculator

Tips: Enter the area in square meters, desired lux level (200-500 for general industrial spaces), fixture lumens (typically 15,000-30,000 lm for high bays), and standard factors (0.7 for utilization, 0.8 for maintenance).

5. Frequently Asked Questions (FAQ)

Q1: What's a typical lux level for warehouses?
A: General storage areas typically need 100-200 lux, while detailed work areas may require 300-500 lux.

Q2: How do I find my fixture's lumens?
A: Check the product specifications - common high bay outputs range from 15,000 to 30,000 lumens.

Q3: What affects the utilization factor?
A: Room reflectance, fixture mounting height, and beam angle all impact how much light reaches the work plane.

Q4: Why include a maintenance factor?
A: It accounts for light loss from dirt accumulation and lumen depreciation over time (typically 0.7-0.85).

Q5: Should I round up the fixture count?
A: Yes, always round up to the nearest whole number since you can't install a fraction of a fixture.