HQRP Portable/Pocket 9 LED 365nm UV Flashlight/Blacklight for Recognition of Invisible Contaminants and Possible Stains After Cleaning plus HQRP UV Meter HQRP&reg; 365 nM UV LED Flashlight plus HQRP&reg; UV Meter; Aluminium Body, Water Resistance, Light on By on/off Switch; LEDs: 9, Wavelength: 365-370 nanometer; Powered by 3 x AAA batteries (not included); Grate Ephemera and Textile Authentication; Criminal Scene Investigation; Forensic Examinations. 200 days Warranty!