Our Strike Survival® SS-C21 Mini Flashlight has a light weight Aerospace-grade aluminum body. With a slip-resistant design, and anti-roll Type 3 hard-anodized anti-abrasive black finish. Construction is shockproof and water resistant. Featuring a simple and convenient tactical switch with low, high, strobe, and momentary on/off function. Battery life is 4 hours at full power and lamp life is over 100,000 hours for long lasting use. The Strike Survival® Tactical Flashlight can be mounted on firearms, “hand guns/rifles/shot guns”. Comes with a durable reinforced pocket clip that is removable for tactical mounting on fire arms. Takes 1AA Battery “not included”. Will also work with lithium ion rechargeable batteries for easy replacement. Everyone should always have a flashlight on or around them regardless for those just in case moments. Super light weight, Durable and small. Will fit in the palm of your hand.