- How to Choose the Right LED High Bay Wattage
- Quick Selection Table by Application
- Dimming: Why Oversizing Can Be Smart
How to Choose the Right LED High Bay Wattage
Wattage selection is the most common question from B2B buyers specifying warehouse lighting. The answer depends on three factors: ceiling height, desired light level (foot-candles), and fixture spacing. Below is Kingseng practical selection guide based on hundreds of commercial installations.
| Wattage | Lumens (150 lm/W) | Best Ceiling Height | Spacing | Coverage (per fixture) |
|---|---|---|---|---|
| 100W | 15,000 lm | 12-18ft | 10-14ft | 100-200 sq ft |
| 150W | 22,500 lm | 18-25ft | 14-18ft | 200-325 sq ft |
| 200W | 30,000 lm | 25-35ft | 18-24ft | 325-575 sq ft |
Quick Selection Table by Application
100W: Workshops (12-15ft ceilings), retail backrooms, small warehouses, parking garages, corridors. Delivers 30-50 foot-candles at typical mounting heights.
150W: Standard warehouses (18-25ft), distribution centers, manufacturing floors, gymnasiums. The most versatile wattage, covers 80% of commercial high bay applications.
200W: High-bay warehouses (25-35ft), aircraft hangars, convention centers, arena concourses. For ceilings above 35ft, consider 240W or 300W models. Delivers 20-30 foot-candles at 35ft with 20ft spacing.
Dimming: Why Oversizing Can Be Smart
Selecting a 200W fixture and dimming it to 70% (140W equivalent) is often more cost-effective than installing a 150W fixture at full output. Benefits: (1) Future-proofing, if your warehouse layout changes, you have reserve brightness, (2) Uniform dimming, all fixtures at 70% maintain matching output, (3) Extended LED life, running below maximum reduces junction temperature. Kingseng 0-10V dimmable drivers support 10-100% dimming range.