The design of the Cosmolux consists of a sun lamp with five glass tubes housed in an enameled steel case hinged on an aluminum base. The metal of the case is pierced at the bottom to prevent overheating. The hinge allows for the lamp to be positioned at the right angle when used and to be folded onto itself when put away, emphasizing the object’s portability. A handle protrudes from the lamp base, making the object portable and easy to get in and out of its storage space. The handle is covered in plastic, hence offering a comfortable grip. To function, the lamp needs to be powered by a cable inserted on the left-hand side of the lamp. The bottom dial on the right-hand side sets a timer. The sun lamp can switch between UV (ultraviolet) and IR (infrared) light sources. The top dial on the right hand-side of the lamp enables the user to choose the setting or to turn the lamp off. The Braun logo appears on both the case and the base, so that it is always visible by the user. It is possible that the lamp would have been sold with protective glasses, which are missing from this set.