Many folks have asked, what can you use a black light for? It is confusing, when you couple the wavelengths with this diatribe. This is not exact, for instance if something is listed at 380 nm, it might work for many things at the 395 nm range, (and vise-versa) just not as well. The following list might be of help: Applications: 380 nm Antique glass (uranium glass, vaseline glass) Forged document detection A/C coolant leak detection (using dye) Carpet inspection Bathroom inspection Animal urine Human urine Arson Investigation Flashlights Lanterns Semen Hotel room inspection Mineral Hunting (diamonds, etc.) Salmonella and Shigella bacteria detection Contaminate inspection (clean environment) 365 nm Forged document detection Salmonella and Shigella bacteria detection Drivers licence UV markings Dye penetrate inspection (NDI/NDT) Magnetic surface analysis Counterfeit currency detection UV Curing (requiring 365nm) 395 nm Curing (requiring 395-400nm) Scorpion Hunting Antique glass (uranium glass, vaseline glass) A/C coolant leak detection (using dye) Carpet inspection Bathroom inspection Animal urine Human urine Arson Investigation Flashlights Lanterns Hotel room inspection 465 nm Bioluminescence Curing (requiring 465nm) Fingerprints (dusted with Redwop etc.) Blood (by absorption) Human urine Semen   Postage for many of your black lights will be chosen by you. You determine the actual cost and method for shipping. All prices are in U.S. dollars. We will get your black light(s) to you as soon as possible (usually mailed the same day or at worst, the next day). For any questions, please contact us at sales@blacklightsusa.com Our emails are sent immediately, so if you don't receive it, it is likely caught in a spam filter. You will receive another email when your order ships which will contain the shipping information. You can pay 3 ways, either by credit card (located on each page as the 'buy now' button), a personal check, or purchase order. When you purchase from use, you will note that the credit card page goes to our sister company, Amberica West, where the credit card purchase will show Amberica West as the merchant. Finally, if you feel more comfortable, feel free to call us at 719-488-2654 (this is in the United States). This number works as a fax if you would like to fax your request or purchase order. Please feel free to visit out sister store that specializes in DNA products. From neckties to jewelry, to DNA models and DNA stuffed toys! The DNA Store has things you only dreamed about. You will enjoy your visit - it is a very unique store. Also there is a unique site for exclusive and specialized Dominican amber at the Amber Mine. Dominican Amber: