EN 12464-1

EN 12464‑1 specifies lighting requirements for humans in indoor workplaces, all usual visual tasks are considered, including Display Screen Equipment (DSE).
Adequate and appropriate lighting enables people to perform visual tasks efficiently and accurately including tasks performed over a prolonged time period or of a repetitive nature. The degree of visibility and comfort required in a wide range of work places is governed by the type and duration of the activity. The lighting also affects circadian rhythms and mood as well as improving our performance and well-being.