BS 5489-1:2013 specifies 350 lux during the day, with controls to allow 100 lux at night. These lighting levels take account of the different transition requirements at day or night whilst providing the light levels required to ensure feelings of safety and security.
Vertical illuminance must also be considered to ensure good facial recognition and help the effectiveness of CCTV recordings. Lighting vertically onto surfaces can also help spaces feel less oppressive and more welcoming.
For further lighting advice speak to our technical sales team on 020 8254 2022 or e-mail technicalsales@designplan.co.uk