Lux reference

Here is a small chart from Wikipedia that provides some reference for the Lux unit.

Source: Wikipedia (https://en.wikipedia.org/wiki/Lux)

Illuminance (lux) Surfaces illuminated by

0.0001

Moonless, overcast night sky (starlight)

0.002

Moonless clear night sky with airglow

0.05–0.3

Full moon on a clear night

3.4

Dark limit of civil twilight under a clear sky

20–50

Public areas with dark surroundings

50

Family living room lights

80

Office building hallway/toilet lighting

100

Very dark overcast day

150

Train station platforms

320–500

Office lighting

400

Sunrise or sunset on a clear day

1000

Overcast day, typical TV studio lighting

10,000–25,000

Full daylight (not direct sun)

32,000–100,000

Direct sunlight