Understanding Lumens and Lux
Measuring Light
Learn About LightWhen shopping for lights, you'll see lumens, lux, and watts. Understanding these measurements helps you choose the right bulb for reading, working, or ambiance.
Lumens vs Lux
- Lumens: How much total light a bulb produces
- Lux: How much light reaches a surface
A 1000-lumen bulb produces 1000 lux at 1m² distance; at 2m², only 250 lux.
Common Light Levels
| Environment | Lux |
|---|---|
| Full moon | 0.25-1 |
| Street lighting | 10-15 |
| Living room | 50-150 |
| Office | 300-500 |
| Detailed work | 500-1000 |
| Surgery | 10,000-100,000 |
| Direct sunlight | 100,000 |
Conclusion
Lumens tell you how much light a bulb produces; lux tells you how bright a surface is. For choosing bulbs, compare lumens. For workplace requirements, check lux levels. The relationship: Lux = Lumens ÷ Area.