EagleTac, M25C2 Turbo allows users to use different type of batteries in standard configuration. With added extension tube, you get extra runtime and extra output at turbo mode with energy saving mode turned off.
M25C2 produces a maximum output of 1180 LED Lumens with beam distance of 640 meters. Powered by 2 or 4 CR123A disposable or 1 or 2 18650 rechargeable batteries. (Not included)