It is important for the lighting in an educational environment to be comfortable, to promote productivity and to be adaptable. This can be achieved by utilising technologies that offer glare control, good distribution of light, and flexibility in its control. These factors will contribute to performance, and aid student concentration. Artificial lighting currently accounts for the highest proportion of all energy costs in schools, at around 28%. How can this be reduced? The use of automatic lighting controls can save as much as 40%.