Flexzion Portable UV Counterfeit Bill Detector Currency Money Dollar Stamps Detection Tester Handheld with Led Black Light Torch Lamp and Carrying Cord Compact, light weight and easy to use as a test for bills, stamps, counterfeit money Slide the side switch towards "tube" to switch on the UV lamp; Slide the side switch towards "torch" to switch on the white lamp; To switch off slide the side switch to the centre position; Do not slide the side switch to the "tube" position with the UV lamp removed Replace the batteries when the lamps begin to dim; Remove the batteries when the lamp is not to be used for some time Night lighting can be used as flashlight, the same brightness and ordinary flashlight Great Kits for all spies and detectives out there - amateur, professional, and free-lance