International lamps f15esetblb luxina 15w blb 240v ultra violet low energy bulb international lamps f15esetblb p the international lamps f15esetblb is a luxina 240v 15w ultra violet low energy bulb this compact fluorescent lamp has a special coating that produces a deep purple light and large amounts of ultra violet light p p the invisible light is reflected back in the visible spectrum by fluorescent materials and dyes white clothes glow brightly in the dark fluorescent paints light