The Extreme Micro Turbo 15270 is a small CR2 sized, pocket torch that uses the Nichia 219B . The flashlight uses a small custom reflector which produces a medium throw for such a small unit. The torch has three output levels with a memory mode, and are offered in Electroless Nickel Aluminum, Brass, Copper, Stainless Steel and Titanium. The unit produces about 750+ lumens on the high setting with a smooth on/off twist head operation. The maximum power is produced from an IMR 15270. THE TOP POWER SETTING SHOULD ONLY BE USED FOR SHORT PERIODS OF TIME BECAUSE OF THE SMALL HEAD AND HIGH POWER OUTPUT IT GENERATES LARGE AMOUNTS OF HEAT. The settings are as follows: High-100%: Medium-30%: Low-5%. The unit will step down to a lower setting when the battery needs to be recharged and has a memory mode. The flashlight has a length of about 2.2 inches and a diameter of 0.80 inches. Includes a Stainless Steel pocket clip. Price does not include batteries or a charger, and must be purchased separately.