Surefire announce their Fury Dual Fuel Tactical Flashlight that can be powered two ways... "The 'DFT' stands for dual fuel tactical, and represents the natural evolution of our best-selling Fury® Tactical flashlight into a single-output 1,500* lumen light that can also function as a searchlight. The dual fuel feature means the light can be powered by either two 123A lithium batteries or a single economical 18650 lithium-ion rechargeable battery.