Designed with professional applications in mind, Peak LED Solutions' Eiger flashlight is compact, comes with a keyring attachment, and has one of the best light outputs available on the market. With a solid copper construction and the ability to use a multitude of different battery types, this flashlight is both durable and versatile. With the use of Quantum Tunneling Composite technology, you can set this flashlight at any brightness between a dim glow and the brightest of any single AAA powered flashlight. And it is entirely manufactured in the USA.