The UV Larry™ Kit helps shed some new light on your situation. The Larry™ features 8 UV LEDs that can reveal materials that are not seen through normal lighting. While the naked eye has a hard time seeing these substances, they fluoresce when illuminated with UV light. The yellow wrap-around glasses enhance the UVs fluorescence drastically, making the substances stand out even more. A A great light kit for AC Freon leak detection and can be very useful in: • Crime scene investigation to reveal certain bodily fluids • Document analysis and currency verification • Leak detection (i.e. Freon) • Rodent and pet stain detection • Gemstone verification