These data-sets contain information relative to the Paper entitled “Light and Motion: Effects of Light Conditions and MEDI on Activity and Motion Area under a Sky-Lighting Machine” Data-set 1 contains individual actigraphy data, divided by participant (N = 22), and session number (N=7), summarised by Task (Reading and Game) and Light Condition (Daylight DL; Artificial Light AL). We coded AL as 0 and DL as 1; Reading as 0 and Game as 1. Data-set 1 includes as factors Gender, Order and Time of Day. These photometric values were included as predictors in the model: Mean Illuminance, referred to as Room Illuminance; Mean Correlated Color Temperature (CCT); Variation, defined as the Standard Deviation (SD) of the Illuminance values; mEDI means calculated with CIE S 026/E:2018 on the spectral values of the two median Illuminance measurements taken over the time-span of thirty minutes; Illuminance measured by the actigraphs, referred to as Personal Illuminance. Personal Illuminance values were asymmetrically distributed and were logged. Data-set 2 collects motion features, divided by groups of participants (N=11), and session number (N=7), summarised by Task (Reading and Game) summarised by Light Condition (Daylight DL; Artificial Light AL). Data-set 3 contains Connectivity in the constructions, divided by groups of participants (N=11) and session number (N=7), summarised by Light Condition (Daylight DL; Artificial Light AL). Data-set 2 and 3 include as factors Order and Time of Day. These photometric values were included as predictors in the models: Mean Illuminance, referred to as Room Illuminance; Mean Correlated Color Temperature (CCT); Variation, defined as the Standard Deviation (SD) of the Illuminance values; mEDI means calculated with CIE S 026/E:2018 on the spectral values of the two median Illuminance measurements taken over the time-span of thirty minutes. Light-Motion_Exposure-DL-Data-set includes photometric measurements each 30 minutes in Daylight conditions.