Abstract: The invention relates to phosphorescent light covers (1) and coatings that, following illumination from a light source (2) will luminesce over a period of time after illumination from the light source has ceased. A phosphorescent light covering (1) or coating is adapted to be retained or located on or about a light source (2), the cover (1) or coating comprising a base material and one or more phosphorescent compounds. The cover (1) may be in the form of a sleeve (1) adapted to encompass a fluorescent globe (2), part or all of which allows light transmission, the light cover (1) further comprising friction fit end pieces (3) having an aperture or apertures (8) through which connection pins (9) may penetrate.