FoxFury's SCOUT Narcotics Evidence Identification Light (NEIL) is a powerful search tool that detects traces of street narcotics. Narcotic substances will fluoresce when excited by a precise wavelength of light, and can be detected by the human eye through a specific filter. The NEIL and its anti-fog Orange goggles have been tested to detect small amounts of marijuana, cocaine, methamphetamines, PCP and heroin. The SCOUT NEIL is a powerful, compact, durable and affordable tool with a versatile belt clip. It emits 20 lumens of light, runs on 3 AAA batteries (alkaline or rechargeable) and provides up to 1.5 hours of usable light. Note that NEIL is a presumptive test. A Chemical Test must always be conducted for definitive "source identification."