This compact UV LED Black Light Source 3.7″ (l) x 1.19″ (w) unit will fit in most pockets and kits. 12 UV LED bright bulbs fluoresce at distances over 20 feet with a wave output 385 nanometers. Easy toggle on-off switch allows for continuous use. Operates on three AAA batteries (not included). Weight 2.5 oz.
Perfect for activation of florescent inks/dyes and scanning a crime scene for foreign materials.