. Author manuscript; available in PMC: 2020 Apr 1.

Published in final edited form as: J Biol Rhythms. 2019 Mar 1;34(2):195–204. doi: 10.1177/0748730419830013

Table 1.

Photometric characteristics of the lighting interventions, based on the Daysimeter data and calculated following the Rea and Figueiro (2018) (CS) and Enezi et al. (2011) (Melanopic illuminance)

Study phase (light level)	Metric	3000 K	3000 K mod
Phase 1 (high light level)	Mean ± SD photopic illuminance (lux)	897 ± 96.8	787 ± 119.4
	CL_A^a	790	482
	Melanopic illuminance^b	436	265
	Predicted CS^a	0.49	0.41
Phase 2 (low light level)	Mean ± SD photopic illuminance (lux)	384 ± 50.3	361 ± 34.1
	CL_A^a	338	221
	Melanopic illuminance^b	187	122
	Predicted CS^a	0.34	0.26

^(a)

Rea and Figueiro (2018),

^(b)

Enezi et al. (2011)