Abstract: A decorative lamp (10, 100) is disclosed for producing a diffuse or scattered lighting. A container (12, 102, 116) includes a light transmissive portion (18). A light source (20, 104, 118, 120, 150) includes a housing (32, 122, 152) arranged inside the light transmissive container (12, 102). The housing (32, 122, 152) includes a battery compartment (52, 130, 162) electrically and mechanically adapted to receive at least one associated battery. At least one LED (36,38, 126, 128, 158) is disposed on a first side (34) of the housing (32, 122, 150) and cooperates with the container (12, 102) to emit diffuse or scattered light from the light transmissive portion (18). A fastening means (62, 134) is arranged on a second side (60) of the housing (32, 122). The fastening means (62, 134) is provided to fasten the housing (32, 122, 150) to an inner side (76) of the container (12, 102) wherein the at least one LED (36, 38, 126, 128, 158) illuminates the interior of the container (12, 102).