An Addressable Loop-Powered Beacon, with a high intensity LED and a custom designed free-form optic which produces a highly visible flash. Coverage diameters include 5m, 7.5m and 10m. The unit is designed to fit the YBN-R/3 and YBN-R/3(SCI) bases or the YBO-BS Base Sounder. This model features a white case and white LEDs. Selectable from the CIE (check panel compatibility).