Without Streamlight's sturdy products, policemen, firefighters, and other first responders might find themselves in the dark, and hunters and mountaineers in a whole lot of trouble. The company manufactures a wide range of professional flashlights, lanterns, and headlamps for law enforcement, fire, industrial, outdoor, and automotive applications. Streamlight's products have virtually indestructible plastic cases and can maintain reliable high powered luminosity in extreme heat and cold environments. The tool firm's lights are also waterproof to a depth of some 200 feet. As part of its business, Streamlight also makes a line of rechargeable flashlights.