Long wave light is the ultraviolet energy nearest to the visible light range, commonly called black light) it activates fluorescence in nuimerous natural substances and manufactured materials.
This is a portable, easy to use, mini longwave only UV 4 watt lamp . It makes an excellent lamp for the office or a quick field inspection. The lamp is lightweight and small enough to fit into a pocket. A nylon strap is attached for easy handling and it operates on 4 AA batteries (not included). A perfect way to view your fluorescent mineral collection.
Caution: Do not expose eyes or skin to shortwave ultraviolet light as rays may burn unprotected eyes or skin. UV Blocking Eyewear is recommended.