... 5,1 fluorescence, there is a negative reflection of fluorescence; counterfeit money no fluorescence. 2, true absorption of paper currency, no ... reflected light; counterfeit Qingbaikouan paper has a strong reflected light. 3, counterfeit money or logo watermark exposure to ... switch to TVBE for the purple lights.2, (the machine without the battery, have to install 4 the 5th batteries ...