Visual notification over a wide area can be challenging, but this can be easily overcome when xenon flash tubes are used in a fire notification device.

With their high light output, xenon flash tubes maximise the attention attracting potential of the devices that they form a part of, and this high output also means that they are ideal for alerting over a wide area. 

Another benefit of xenon flash tubes is that they emit the same amount of light in every direction without fluctuation. This coupled with the circular design of a device, like the Flashni, means that equal light intensity will be emitted around 360° over a wide area.