Light Sensor Meter

A simple light level meter that gives a very accurate (depending on the quality of your device and the sensors in it) and helpful visual aid.
Common Light Levels OutdoorCondition Illumination (ftcd) (lux)

Sunlight 10,000 107,527 Full Daylight 1,000 10,752 Overcast Day 100 1,075 Very Dark Day 10 107 Twilight 1 10.8 Deep Twilight .1 1.08 Full Moon .01 .108 Quarter Moon .001 .0108 Starlight .0001 .0011 Overcast Night .00001 .0001

Common and Recommended Light Levels IndoorActivity Illumination (lux, lumen/m2)


* Public areas with dark surroundings 20
- 50
* Simple orientation for short visits 50
- 100
* Working areas where visual tasks are only occasionally performed 100
- 150
* Warehouses, Homes, Theaters, Archives 150
* Easy Office Work, Classes 250
* Normal Office Work, PC Work, Study Library, Groceries, Show Rooms, Laboratories 500
* Supermarkets, Mechanical Workshops, Office Landscapes 750
* Normal Drawing Work, Detailed Mechanical Workshops, Operation Theatres 1,000
* Detailed Drawing Work, Very Detailed Mechanical Works 1500
- 2000
* Performance of visual tasks of low contrast and very small size for prolonged periods of time 2000
- 5000
* Performance of very prolonged and exacting visual tasks 5000
- 10000
* Performance of very special visual tasks of extremely low contrast and small size 10000
- 20000

If you experience any issues please feel free to contact us with the description of the issue and type of phone you are using and we will do our best to help resolve your issue. Thank you, have fun and enjoy.