Flashlight, Ultraviolet, 1 Each

The Flashlight, Ultraviolet by United Scientific is a 6", 4 W handheld blacklight with a longwave UV-A bulb rated at 350 to 365 nm and a built-in LED flashlight. It runs on four AA batteries, not included. Earth science, biology and forensics teachers use it to show mineral fluorescence and reveal fluorescent dyes, inks and blacklight-reactive materials.