TARIC 8540.89.00.91 — Displays in the form of a tube consisting of a glass housing mounted on a board the dimensions of which do not exceed 300|mm|!x!|350|mm excluding leads. The tube contains one or more rows of characters or lines arranged in rows, each character or line consisting of fluorescent or phosphorescent elements. These elements are mounted on a metallised base which is covered with fluorescent substances or phosphorescent salts which give off light when bombarded with electrons