What is the best LED high bay for warehouse lighting?

UFO-style LED high bays (100-240W) are the current standard for warehouses with 6-15m ceiling heights. Key specs: 130+ lm/W efficacy, 4000-5000K CCT, IP65 for dusty environments, 50,000h+ L70 lifetime. Linear high bays are better for aisles. For ceiling heights above 15m, use 240-400W high bays with narrow optics (30°-60° beam).

How many lumens do I need for a warehouse?

Per IES recommendations: 100-200 lux for bulk storage (low activity), 200-300 lux for medium activity picking, 300-500 lux for fine detail work and packing stations. This translates to roughly 15-30 lumens per square foot for general warehouse, 30-50 lm/ft² for active areas. Always account for mounting height — light loss increases with the square of distance.

What IP rating is required for industrial lighting?

IP65 minimum for general warehouse and factory environments — protected against dust and water jets. IP66 for washdown areas and food processing. IP67 for areas subject to temporary flooding. IP20 may be acceptable for clean, climate-controlled warehouses but is not recommended. Dust accumulation on IP20 fixtures can reduce output by 20-40% within 2 years.

How much can I save switching from metal halide to LED in a warehouse?

A typical 400W metal halide high bay (450W with ballast) can be replaced by a 150W LED high bay delivering equivalent or better light. This saves 300W per fixture. For a 100-fixture warehouse operating 16h/day, 6 days/week: annual savings of ~$8,500 in electricity alone (at $0.10/kWh), plus $2,000-4,000 in avoided lamp replacement and labor. Total payback period: 12-24 months.

🏭 Scene Guide

Industrial & Warehouse Lighting Guide

Industrial lighting is the highest-ROI LED retrofit opportunity — warehouses and factories typically run lights 12-24 hours/day, making energy savings the dominant factor. This guide covers high bay selection by ceiling height, lux requirements by activity type, IP ratings for harsh environments, and the metal halide to LED conversion case.

Quick Parameter Reference

Recommended specifications by warehouse zone

Zone	CCT	Lux	Fixture	IP	Wattage
📦 Bulk Storage	4000K	100-150	UFO HB 100W	IP65	100W
🔧 Assembly Line	5000K	300-500	Linear HB 150W	IP65	150W
📋 QC / Inspection	4000-5000K	500-750	Linear HB 200W	IP65	200W
🚚 Loading Dock	5000K	200-300	UFO HB 150W	IP66	150W

🏭 High Bay Selection by Ceiling Height

The single most important factor in warehouse lighting design is mounting height. Light intensity drops with the square of distance — a fixture at 12m needs 4x the output of one at 6m.

Low Bay (4-6m)

80-100W LED

Wide beam 90°-120°. 13000-16000 lm output.

Mid Bay (6-10m)

150-200W LED

Medium beam 60°-90°. 24000-32000 lm.

High Bay (10-15m)

240-320W LED

Narrow beam 30°-60°. 38000-50000 lm.

Lens Optics

Match to Aisle

Narrow for racks, wide for open floor. Type III/V distributions.

⚠ Common mistake: Specifying the same high bay fixture for the entire warehouse regardless of ceiling height variation. A 200W fixture at 8m delivers 500 lux, but the same fixture at 14m delivers only 160 lux — below the minimum for picking areas. Each zone must be calculated independently based on actual mounting height.

💡 Pro tip: For warehouses with motion-activated lighting (the standard for modern facilities), specify LED drivers that support instant-on with no warm-up time. Metal halide takes 5-15 minutes to restrike — making motion sensors impractical. LED instant-on response enables true occupancy-based control, cutting energy use by an additional 40-60% beyond the LED conversion savings alone.

Case Study: Metal Halide vs LED — 100-Fixture Warehouse

5,000m² warehouse, 10m ceiling, 16h/day operation, $0.12/kWh

❌ 400W Metal Halide

System Watts	450W (400W + ballast)
Annual Energy	262,800 kWh
Electricity Cost	$31,536/yr
Lamp Replacement	$3,000/yr
Total Annual	$34,536
5-Year TCO	$172,680

✅ 150W LED High Bay

System Watts	150W
Annual Energy	87,600 kWh
Electricity Cost	$10,512/yr
Lamp Replacement	$0/yr (50,000h life)
Total Annual	$10,512
5-Year TCO	$52,560

Key takeaway: LED conversion saves $120,120 over 5 years — a 70% reduction. Fixture cost (~$15,000 for 100 LED high bays) pays back in 7-8 months. Add motion sensors for an additional 40% savings: total 5-year savings approach $170,000.

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