Specs

Mini Spider uses one 3V CR123A battery (Lithium)
2 1/2" (Length) x 5/8" (Diameter)
Made of T6 aircraft-grade aluminum
Durable Type III hard-anodized anti-abrasive finish
7 oz weight (excluding batteries)
Waterproof to IPX-8 Standard
Toughened ultra-clear glass lens with anti-reflective coating
Accessories: holster, lanyard. (Not included)