![Quintessence round - Very high visual comfort](/cdn/images/family/special-features/usa/erco-121_hoher_sehkomfort_qe-m.jpg)
Very high visual comfort
The low brightness reflector combines maximum visual comfort with an optimum light output ratio.
![Quintessence round - Suitable for office workstations](/cdn/images/family/special-features/usa/erco-125_ugr-m.jpg)
Suitable for office workstations
ERCO develops luminaires with the specifications of good glare control and high visual comfort. UGR values are used as support for purely norm-referenced lighting. With downlights though this should not be carried out using 'blanket' values, but should be implemented according to the individual arrangement of luminaires in the room.
![Quintessence round - Covered or flush mounting detail](/cdn/images/family/special-features/usa/erco-245_einbaudetail_decke-m.jpg)
Covered or flush mounting detail
As standard, all recessed luminaires have overlapping installation details. Flush mounting rings are available as accessories.