Inexpensively priced and able to take a lot of use, this fluorescent black light puts out 4 watts of power in the dark. Ever wanted to know if your amber is real or fake? A black light is one of the easiest ways to help this identification! Real amber has a yellow to blue glow, fake plastic has no luminescence.

This is a 6 inch cheap handheld black light. Works with 4 AA batteries which are not included. Checking hand stamps, finding pet stains, checking for bacteria, applying black light sensitive cosmetics, searching for antique glass.

There are more applications for using this black light. Cat and pet urine shows up under UV light. Ever wonder if your cat is urinating behind the chairs. In works of art, modern paint will fluoresce or glow under a black light, older paints will not. Thus, pictures that have been touched up with modern paint will glow. Repairs or hairline cracks may show and become more apparent under backlight. Art Glass as Lalique before 1945 fluoresces yellow; after 1945, it does not. Genuine old Burmese fluoresces bright yellow green, new reproductions do not. Porcelain: Hard paste porcelain will fluoresce a deep blue or purple color. Soft paste will fluoresce white.