| Serial number |
Illumination range (LX) |
Location or activity type |
| 1 |
20-30-50 |
Outdoor Activity and workplace. Such as corridors, storage rooms, stairwells, bathrooms, coffee shops, bars, and advertisements in front of the station. |
| 2 |
30-30-100-150 |
Location of circulation and positioning of short-distance travel. Such as the elevator room, room service desk, bar counter, indoor restaurant business hall, Duty Room, post and telecommunications, entertainment hall, theater, station hall, inquiry room, clinic, mall channel area, etc. |
| 3 |
100-150-200 |
Non-continuous use of the workplace. Office, reception room, room writing desk, store shelf, counter, commissary, kitchen, sale box office, rehearsal room, ticket checking room, operating room, radiation room, broadcast room, switchboard room, electric classroom, bowling, office, etc.. |
| 4 |
200-300-500 |
Simple visual jobs. Such as the reading room, design room, window display room, display room, beauty, cooking, sports training ground, glass, stone, metal Exhibition Hall, bowling, volleyball, badminton, martial arts and other competitions. |
| 5 |
300-500-700 |
Jobs with medium visual requirements. Gymnastics, tennis, basketball, swimming, diving, drawing room, printing machine room, wood processing, General fine work, rough machining, machine tool area, electrical repair workshop and so on. |
| 6 |
500-750-1000 |
Jobs with strong visual requirements. Table Tennis, go, chess and other competitions, metal processing plants, small assembly in the mechanical and electrical assembly workshop, electrical repair workshop (precision), typing room, polishing workshop, etc. |
| 7 |
750-1000-1500 |
Jobs that are difficult to see. |
| 8 |
1000-1500-2000 |
Jobs with special visual requirements. |
| 9 |
More than 2000 |
Perform precise visual jobs. |
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