This compact industrial penlight of Ledlenser is easy to carry in your pocket, therefore ideal for use as inspection lamp or in the workplace. The I6ER comes with a handy charging station with USB port. LedLenser is a Zweibrüder brand. They manufacture a wide range of torches, headlamps and diving lamps featuring the latest LED technology as well as, in most cases, the Advanced Focus System, one of the best focusing systems available.