• Wavelength of 395 nm to detect pet urine stains, driver's licenses, ID cards, passports, and authenticated currency. • Compact and portable: each flashlight measures 3.7'' x 1.13'' and weighs 1.8 oz, ideal for carrying in your pocket. • IPX4 waterproof: suitable for use in rain, snow, or emergency situations. • Special texture design to prevent slipping. • Made with high-quality aluminum alloy material, durable for heavy use. • 12 UV bulbs that emit a brighter light and last longer than other flashlights. • Lifespan of up to 15 years.