What Is Needed For Warehouse Lighting Design?

I. Key Lighting Design Calculations (Practical Formulas)

1. Lumen Method Formula (Determining Fixture Quantity)

• N: Number of fixtures
• E: Target illuminance (lux)
• A: Area (m²)
• ϕ: Luminous flux per fixture (lumens, e.g., 24,000 lm for a 200W LED)
• U: Utilization factor (0.4–0.8; lower for high-bay warehouses due to light loss)
• M: Maintenance factor (0.7for dusty environments)

2. Example Calculation

For a1,000 m² picking zone(target:500 lux), using200W LED fixtures(24,000 lm),$U=0.6$,$M=0.7$:

N=500×100024000×0.6×0.7≈49 fixturesN=24000×0.6×0.7500×1000≈49 fixtures

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II. Critical Factors Affecting Lighting Requirements (Optimization Details)

1. Ceiling Height & Fixture Placement

• Low ceilings (<5m): Usewide-beam LEDsfor uniform distribution.
• High ceilings (>10m): Deployhigh-bay fixtureswithnarrow opticsto minimize wasted light.

2. Reflectivity of Goods & Surfaces

• Dark-colored goods/racks: Increase illuminance by20–30%(dark surfaces absorb light).
• Light-colored walls/floors (reflectivity >70%): Reduce illuminance by10-15%(utilize reflected light).

3. Color Temperature & Visual Comfort

• Storage areas:3000K–4000K(warm white, energy-efficient).
• Work zones:4000K–5000K(neutral white, enhances focus and reduces fatigue).

4. Energy Efficiency & Smart Controls

• Zoned dimming: Motion sensors adjust brightness (e.g., aisles dim to50%when unoccupied).
• Daylight harvesting: Automatic dimming in skylit areas to avoid over-illumination.

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III. Fixture Types & Recommendations (By Application)

Fixture Type	Efficacy (lm/W)	Lifespan (hrs)	Best For	Key Notes
LED High-Bay Lights	120–200	50,000+	General use, high ceilings	Anti-glare optics for operator comfort
LED Linear Strips	100–150	50,000+	Rack lighting, task areas	Recessed mounting to avoid glare
HID (High-Pressure Sodium)	80–100	20,000	Legacy warehouse retrofits	Poor CRI (<30), unsuitable for picking
Explosion-Proof Lights	80–150	30,000+	Hazardous/cold storage	Must meetATEX/Ex IIcertification

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Key Takeaways

• Precision matters: Adjust calculations for ceiling height, reflectivity, and task requirements.
• LEDs dominate: Highest efficiency and longevity for warehouses.
• Smart controls = savings: Automated dimming can reduce energy use by30–40%.

For complex layouts, useDIALuxor similar software to simulate light distribution and eliminate dark spots.