The Black Light effect or Wood lamp (named for the American scientist Robert Williams Wood) refers to a light source that emits predominantly ultraviolet light and, to a lesser extent, visible light to create very special effects on the surfaces it strikes. The fluorescent effects or the effects of intensifying reflections of a specific range of the light spectrum are certainly the most widely used in the world of entertainment, especially in discos and dance halls. Also frequently appearing in the product name is the abbreviation UV (Ultra Violet), which refers to the technology used. Ribalto has a rich catalogue of UV effects and can satisfy the needs of both small and large installations in discos, amusement parks, exhibitions, museums and much more.