If you are looking for a high-quality flashlight with great beam and innovative interface, then you may consider a flash light from Klarus called XT11. This new flashlight is the successor version of their previous flashlight, the Klarus XT10, which was the first Kalrus flashlight to use the innovative dual button tail switch.
The Klarus XT11 besides using the same fantastic dual switch interface, it also adds a stainless steel strike bezel for increased protection, the stainless steel bezel can be unscrewed and removed for attaching accessories, such as colored filters for hunting, military use, map reading, etc.
The Klarus XT11 comes with a powerful Cree XM-L U2 LED that can be set in three lighting modes and one flashing mode (variable frequency strobe 600 Lumens that can provide up to 4.4 hours of operating time). The lighting modes include 10 Lumens light (can be used up to 295 hours), 150 Lumens light (up to 7.3 operating time), and 600 Lumens light (up to 2.2 hours of continuous operation). The LED lamp lifespan of up to 50,000 hours.
The Klarus XT11 can be powered by one 18650 battery, or two CR123A batteries, or two 16340 batteries. The strobe can be activated with the mode switch when the flashlight is on or off, giving you an instant access to strobe from any mode. This flashlight is uses toughened ultra-clear glass, and the flashlight body is made of an aircraft-grade aluminum.