Rocklight UV Flashlight Purple Light Ultraviolet Torch  (Black, 8.5 cm)

With this ultra-bright and efficient 21-LED torch you can brighten-up UV colour change beads, fluoresce glow-in-the-dark objects (even during the day), search for security markings, check out fluorescent minerals in rocks and much more. For an out-of-this-world effect shine the powerful black light on our glow-in-the-dark putty and watch it glow a temporary eerie green colour, or excite our wonder stars so they even glow for a short-time in daylight. Demonstrate the colour changing properties of our UV beads on grey, cloudy days by shining the purple light on the off-white beads and watching them change to a variety of vibrant colours. Please note: this UV torch does not excite the yellow or orange beads.