理解する ルーメン and ルクス
Measuring Light
Learn About LightWhen shopping for lights, you'll see lumens, lux, and watts. 理解する these measurements helps you choose the right bulb for reading, working, or ambiance.
ルーメン vs ルクス
- ルーメン: How much total light a bulb produces
- ルクス: 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 | ルクス |
|---|---|
| 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 |
まとめ
ルーメン 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: ルクス = ルーメン ÷ Area.