Note This data set is for illustration and may not be completely accurate for all users or situations. Lighting condition From (lux) To (lux) Mean value (lux) Lighting step Pitch Black 0 10 5 1 Very Dark 10 50 30 2 Dark Indoors 50 200 125 3 Dim Indoors 200 400 300 4 Normal Indoors 400 1,000 700 5 Bright Indoors 1,000 5,000 3,000 6 Dim Outdoors 5,000 10,000 7,500 7 Cloudy Outdoors 10,000 30,000 20,000 8 Direct Sunlight 30,000 100,000 65,000 9