A visual alarm device configured to be mounted on a mounting wall and to illuminate a cuboid shape with a flash light having a minimum light intensity, the visual alarm device comprising: a housing (1, 3) configured to be mounted on the mounting wall; a plurality of light emitting devices provided in the housing (1, 3); the plurality of light emitting devices consisting of five LEDs mounted substantially in a row on a printed circuit board, the outer LEDs of the row being provided on dedicated arms and inclined with an angle of substantially 40° with regard to the mounting wall, when the visual alarm device is mounted on the mounting wall; a reflector body configured to direct the light emitted by the light emitting devices into four partially overlapping predetermined fields by means of individual faceted cavities, the reflector body comprises a center reflector cavity and left hand and right hand reflector cavities; these fields comprising: a first field covering a front wall and far floor of the cuboid shape and being illuminated by direct light of the three middle LEDs and light reflected by the center cavity; a second field covering the left hand side wall of the cuboid shape being illuminated by direct light of the lefthand side LED and light reflected by the left hand cavity; a third field covering the right hand side wall of the cuboid shape being illuminated by direct light of the righthand side LED and light reflected by the right hand cavity; and a fourth field covering the near floor area around and under the visual alarm device of the cuboid shape illuminated solely by reflections from a top center part of the center reflector cavity. a housing (1, 3) configured to be mounted on the mounting wall; a plurality of light emitting devices provided in the housing (1, 3); the plurality of light emitting devices consisting of five LEDs mounted substantially in a row on a printed circuit board, the outer LEDs of the row being provided on dedicated arms and inclined with an angle of substantially 40° with regard to the mounting wall, when the visual alarm device is mounted on the mounting wall; a reflector body configured to direct the light emitted by the light emitting devices into four partially overlapping predetermined fields by means of individual faceted cavities, the reflector body comprises a center reflector cavity and left hand and right hand reflector cavities; these fields comprising: a first field covering a front wall and far floor of the cuboid shape and being illuminated by direct light of the three middle LEDs and light reflected by the center cavity; a second field covering the left hand side wall of the cuboid shape being illuminated by direct light of the lefthand side LED and light reflected by the left hand cavity; a third field covering the right hand side wall of the cuboid shape being illuminated by direct light of the righthand side LED and light reflected by the right hand cavity; and a fourth field covering the near floor area around and under the visual alarm device of the cuboid shape illuminated solely by reflections from a top center part of the center reflector cavity. a first field covering a front wall and far floor of the cuboid shape and being illuminated by direct light of the three middle LEDs and light reflected by the center cavity; a second field covering the left hand side wall of the cuboid shape being illuminated by direct light of the lefthand side LED and light reflected by the left hand cavity; a third field covering the right hand side wall of the cuboid shape being illuminated by direct light of the righthand side LED and light reflected by the right hand cavity; and a fourth field covering the near floor area around and under the visual alarm device of the cuboid shape illuminated solely by reflections from a top center part of the center reflector cavity.