An illumination assembly in a set-up condition, the illumination assembly providing a Christmas tree impression and being arranged to be brought to a packaged condition and vice versa, the illumination assembly comprising: • at least two bands each having a first end and a second end, wherein the at least two bands extend from a common apical range, in which the first ends of the at least two bands are located, in downward direction and, viewed from the apical range, extend away from each other, such that two neighboring bands, seen in side view of the illumination assembly, bound a triangular area; • at least one string of lights which extends zigzag in the associated triangular area between two neighboring bands of said at least two bands, while the at least one string of lights is connected with those two neighboring bands; • light string fastening elements which connect the at least one string of lights with the bands; • band fastening elements (16, 18) which are each connected with an associated second end of the at least two bands; • top fastening means (20; 64; 66) positioning the first ends of the at least two bands relative to a fixed external object, such as a pole, a wall, a door or a tree, such that the apical range is at a particular level above the ground; wherein the at least two bands are held in a tensed condition with the aid of the band fastening elements (16, 18) in that the second ends are connected via the band fastening elements (16, 18) to an object and in that the top fastening means (20, 64, 66) are connected with a fixed object such as a pole, a wall, a door or a tree, wherein each band fastening element (16, 18) comprises an elastic, characterized in that the object is a fixed object such as the ground, a wall, a door and/or a tree and in that the elastic is connected with the second end of the associated band in a tensed condition. • at least two bands each having a first end and a second end, wherein the at least two bands extend from a common apical range, in which the first ends of the at least two bands are located, in downward direction and, viewed from the apical range, extend away from each other, such that two neighboring bands, seen in side view of the illumination assembly, bound a triangular area; • at least one string of lights which extends zigzag in the associated triangular area between two neighboring bands of said at least two bands, while the at least one string of lights is connected with those two neighboring bands; • light string fastening elements which connect the at least one string of lights with the bands; • band fastening elements (16, 18) which are each connected with an associated second end of the at least two bands; • top fastening means (20; 64; 66) positioning the first ends of the at least two bands relative to a fixed external object, such as a pole, a wall, a door or a tree, such that the apical range is at a particular level above the ground; wherein the at least two bands are held in a tensed condition with the aid of the band fastening elements (16, 18) in that the second ends are connected via the band fastening elements (16, 18) to an object and in that the top fastening means (20, 64, 66) are connected with a fixed object such as a pole, a wall, a door or a tree, wherein each band fastening element (16, 18) comprises an elastic, characterized in that the object is a fixed object such as the ground, a wall, a door and/or a tree and in that the elastic is connected with the second end of the associated band in a tensed condition.