DUAL COLOR ( WHITE & UV BLACK LIGHT): See beneath the surface. The Dual-Color White & UV Beam combines an all-white Utility Beam for general use with a UV light for detecting fluid leaks or checking security features on currency and identification cards. UV UTILITY BEAM: The all-around UV light for inspection and security. COAST???s UV Utility Beam shines three overlapping UV beams to create a broad overall field of light???with a concentrated, vivid center and diffuse, radiant edges. Used for scorpion detection, leak detection, fluids detection, and currency detection. SPECS: 150 lumen, 400nm Wavelength, 16 meter (25 ft.) beam distance and 5 hour runtime. Tested and rated to ANSI/FL1 standards.