UV LED FLASHLIGHT MATERIAL - UV Torch spotlight blacklight flashlights led are made of heavy-duty resistant aerospace-grade aluminum alloy and 68pcs led, Professional Grade 395nm. Thats why the professionals prefer GLOSSDAY. TESTING the FLUORESCENT SUBSTANCES - With it you can find Fluorescent Whitening Agent contained in Baby clothes or your cosmetics, ensuring safe from Fluorescent Agent. Towards the items that contain No Fluorescent Whitening Agent, the blacklight will show purple light, if yes, then it will show fluorescence color.