Table 1

Horizontal and vertical desk illuminance values on the intervention and control floors.

Floor

Average horizontal illuminance at working plane (SD)

Average % daylight contribution to horizontal illuminance (SD)

Average vertical illuminance at the eye position (SD)

Average % daylight contribution to vertical illuminance (SD)

A. Intervention (17000 K)

311 lux (112)

13% (10)

170 lux (85)

40% (33)

B. Control (2900 K)

354 lux (45)

11% (10)

128 lux (44)

55% (32)

Mills et al. Journal of Circadian Rhythms 2007 5:2   doi:10.1186/1740-3391-5-2