PCE Instruments (PCE) offers lux meter devices for checking for cabin lighting system adequacy. Lux meters, or light meters, are used to ensure that the light levels fall within a certain level where it is bright enough but not too bright to cause glare. The proper light levels enable people to move about the cabin safely and efficiently.
View PCE's selection of lux meter products at https://www.pce-instruments.com/english/measuring-instruments/test-meters/lux-meter-kat_40074.htm