High performance: emits a UV (Ultra Violet) wavelength of 395nm with 9 ultraviolet leds Wide Use: The mini uv flashlight is perfect for spotting dry spots of dogs, cats and rodents revealing naked eye. Safe Helper: It can help you find fluorescent whitening agent in baby clothes or your cosmetics, protect you from fluorescent agent. Power: it is powered by 3 * AAA battery (not included) Excellent design: shock and water resistant design, well made and lightweight.