The invention relates to a light (1) especially a wall or ceiling light protected from spray water and used to receive at least one long gas discharge lamp (5), said light comprising a closed housing formed by an at least transparent base part (3) which can be mounted in a fixed location and holds electrical devices, and an at least transparent coupling part (2). The base part (3) and the coupling part (2) are injection-molded from the same charges of thermoplastic material in a common mold which is essentially symmetrical in terms of the injection process, and overlap along peripheral edges on both sides, one edge being an insertion edge (10) and the other edge being embodied as a U-shaped receiving element (9) for receiving the insertion edge (10). According to the invention, taking into consideration the characteristic features of the transparent or translucent plastic material and the requirements of large-scale production, the light is designed in such a way that the U-shaped receiving element (9) comprises a seal (14) consisting of an elastomer foam forming a smooth outer skin, and the inner wall (15) of the light is provided with a surface structure improving the adhesion, for receiving the seal (14).