European Standard: BSEN 12464:2002
This standard specifies the ideal UGR values for different environments such as offices and classrooms.
For meetings, reading, writing, PC based work and training, the recommended UGR is <19.
For technical drawing, it is <16.
Direct Glare comes from light in the field of vision and not reflected into it.
Indirect Glare, is when light is bounced from reflective surfaces such as windows or monitors etc.
The 60147 is a baffle that when used in conjunction with the 12927 33UP Array optic, can achieve the lowest UGR currently available on the market. <16
The part is available separately in black (60147-BLK) or white (60147-WHT) or can be purchased with the 12927 (12927-BLK, 12927-WHT).