This company introduces the UV-Pen, a new UVA light source. This portable, powerful, high-tech tool has many uses and advantages over traditional UV sources, and comes in narrow- and wide-UV beam. The unit uses a small UV LED for the light source instead of the more common tube. Its maximum UV output is immediate with no warm-up time necessary. It can be run for more than 20 hours with two standard AAA alkaline batteries.