The standard values for service illuminance (Em [Lux]), color appearance (F), color rendering group (Ra), and unified glare restriction class (UGRL) according to EN 12464-1 are listed in the table for the various types of interior or activity. The ratings for service illuminance, color rendering group, and direct glare restriction class represent minimum values to be met by the lighting system.

Interiors / Activities

Em[lx]

F

Ra

UGRL

Lobby, foyer, cloakroom

200

ww

80

22

Ticket office

300

ww, nw

80

22

Rehearsal room, changing room

300

ww, nw

80

22

Auditorium during breaks

100

ww

80

22

Music stands

500

ww, nw

80

22