The “Tiny Monster” TM26 flashlight from NiteCore is stated to be the world’s smallest 3500 lumen flashlight. It has a 5.6″ length, 2.0″ tube diameter, and 2.8″ head diameter and weighs 15.5 ounces without the batteries. It has four CREE XM-L LEDs and is powered by either four 18650 Li-ion or eight CR123 batteries. It’s made of “HAIII military grade hard-anodized aerospace-grade aluminum alloy” with a stainless steel bezel ring and a “toughened ultra-clear mineral glass with anti-reflective coating.” Circuitry protects the batteries during recharging and protects the flashlight from overheating. The TM26 has eight switchable brightness levels, and it is “waterproof in accordance with IPX-8 (submersible to two meters).” It comes with a wall charger, lanyard, holster, and an extra O-ring, but it doesn’t come with batteries. The NiteCore TM26 flashlight is available at ThinkGeek for $389.99, and they have a set of four 2600mAh Li-ion 18650 batteries for an additional $54.99.