Streamlight is an ISO 9001:2008 registered company located in Eagleville, Pennsylvania that manufactures flashlights powered by various rechargeable and disposable batteries.
Their product line features hand-held and weapon-mountable lights as well as a right angle light used by firefighters on their turnout gear. Several of their products utilize dual sources, combining the long life of LED lamps with more powerful but shorter-lived conventional incandescent lamps. They also produce a series of Laser Illuminators such as the TLR-2 which is a combination LED weapon light and laser.
Streamlight developed the first 5 million candela hand light for NASA in the early 1970s.