This discreet surface-mount square emergency spot downlight is provided with auto-test (self-test) to reduce the time required for monthly and annual testing. The width of the ONTEC R is just 130mm and has a depth of 27mm from the ceiling or wall. With open area optics and non-maintained LED lamps providing an emergency output of 160 lumens, it allows for spacing between fittings of 10m at 3m heights or 14.5m at 5m heights.