This portable fluorescent black light has a multitude of uses including detection of counterfeit bills, authentication of credit cards, illumination of pet stains, contamination detection, insect identification and so forth. It is the correct nanometer (395 nm approx.) for optimum illumination. Many competitive products are not. This product is also the best built fluorescent tube portable black light we've found on the market today. Each unit includes a wrist lanyard. Runs on 4 AA batteries, not included. Each unit measures 6.25 in. x 2 in. x 1 in.

You can use this product to find or authenticate:

• Currency
• Credit Cards
• Invisible ink
• Scorpions and other insects
• Pet stains
• Postal stamps
• Soiled surfaces
• Certain antique glass
• Bacteria
• Glow-in-the-dark paint