Introducing our first Ultra Violet light bulb. This PAR 20 has a standard socket size, and has 38 UV LED"s. The LED"s have a wavelength of 385 nanometers. With this wavelength there is some visible light yet still very powerful in UV. So object that fluoresce will really glow. This bulb will work in any 110 - 120 V AC and only consumes about 5 watts of energy. This UV LED flashlight is designed for money checking, credit card checking, criminology, oil-mining, mineralogy, archeology, surveillance, chemical probe testing, security inks, document checking, biology, medical applications, chemistry, food checking, water pollution detection, body fluid, Urine spot and etc. Some other use for this UV LED flashlight: Bugs/Insect Detection Minerals Hunting Automobile Air Condition Fluid Leaking (Freon) Police use it for scanning the crime scene Durable, LEDs have a long life and are nearly unbreakable Specifications: Bulb Type:PAR20 38 LED UV (385nm) Life Time: 50,000 Hours Color : Purple/Blue UV Blacklight 385nm View Angle :15 Deg Operating Voltage :110 - 120 volt AC Consumption :5 Watt Product Diameter :2.48" or 62.5 mm Product Length :3.25" or 82 mm