Lux Guideline
What is Lux ?
Lux, or footcandle, is a measurement unit of light intensity, which is also called “illuminance” or “illumination”. It is used to describe the number of lumens falling on a square meter(lux) or square foot(footcandle)
How to know what lux reached for lighting project
Using a lux meter is the best way to measure light lux. The lux meter can gives visual reference to choose the optimal light intensity for a lighting project.
Lux recommendations for different scenarios
Facility Type | Light Level (Lux) | Light Level (Foot-candles) |
Indoor environment | ||
Restaurant/cafe shop | 200-300 lux | 20-30 FC |
Retail store | 200-500 lux | 20-50 FC |
Hospital | 100-200 lux | 10-20 FC |
Classroom/school | 300-500 lux | 30-50 FC |
Conference Room | 300-500 lux | 30-50 FC |
Dormitory/living room | 200-300 lux | 20-30 FC |
Library | 200-500 lux | 20-50 FC |
Office | 300-500 lux | 30-50 FC |
Exhibit Space | 300-500 lux | 30-50 FC |
Gym | 200-300 lux | 20-30 FC |
Lobby/Info desk | 200-300 lux | 20-30 FC |
Stairway | 50-100 lux | 5-10 FC |
Parking garage | 50-100 lux | 5-10 FC |
Mechanical / Electrical Room | 200-500 lux | 20-50 FC |
Loading Dock | 100-300 lux | 10-30 FC |
Warehouse (General) | 100-200 lux | 10-20 FC |
Factory | 300-700 lux | 30-70 FC |
Outdoor environment | ||
*Roadway | 8-15 lux | 0.8-1.5 FC |
Parking Lots | 10-30 lux | 1-3 FC |
Building surroundings | 100-200 lux | 10-20 FC |
Building entrance | 30-50 lux | 3-5 FC |
Gas/Petrol station | 100-300 lux | 10-30 FC |
Square | 50-100 lux | 5-10 FC |
*Roadway Lighting Project lux guideline
Raod and Pedestrian Conflict Area | Pavement Classification | |||
Raod | Pedestrian conflict area | R1 | R2 & R3 | R4 |
Freeway Class A | 6 lux | 9 lux | 8 lux | |
Freeway Class B | 4 lux | 6 lux | 5 lux | |
Expressway | High | 10 lux | 14 lux | 13 lux |
Medium | 8 lux | 12 lux | 10 lux | |
Low | 6 lux | 9 lux | 8 lux | |
Major | High | 12 lux | 17 lux | 15 lux |
Medium | 9 lux | 13 lux | 11 lux | |
Low | 6 lux | 9 lux | 8 lux | |
Collector | High | 8 lux | 12 lux | 10 lux |
Medium | 6 lux | 9 lux | 8 lux | |
Low | 4 lux | 6 lux | 5 lux | |
Local | High | 6 lux | 9 lux | 8 lux |
Medium | 5 lux | 7 lux | 6 lux | |
Low | 3 lux | 4 lux | 4 lux |