The Mini-Mag light is rugged, made from machined aluminum construction with knurled design. The high-intensity light beam goes from spot to flood with a twist of the wrist. It converts quickly to a freestanding candle mode. Anodized inside and out for improved corrosion resistance. Water and shock resistant. A spare lamp is inside the tail cap, and comes with an Energizer alkaline battery for long lamp life and efficient power usage.AA, 5 1/2" long, and weighs less than 2 oz.Limited Lifetime Warranty. Flashlight designed, Manufactured, and patented in the USA