YELLORE 150W LED Black Light, 2 Pack UV Flood Light with Plug(10ft Cable), IP66 Waterproof Blacklights with Fluorescent Tape,Perfect for Christmas, Stage Lighting, Glow in The Dark, Fluorescent PosterUV Light can make some invisible thing offer visible picture. Ideal for illuminating most of reactive pigments, paints and dyes with a black light -Ea..