The INOVA X1 is a serious flashlight that offers exceptional engineering and illumination for its compact 4 in. size. Powered by a single AA alkaline battery, its patented optical system and precision machined aluminum reflector with thermal interface provides superior light projection and visibility. The push button end-cap switch activates constant and momentary high and low, and lockout modes. Featuring a uniform focused spot with flood beam pattern that has an effective range of 187 ft. The stainless steel clip makes it perfect for keeping close at hand on a waistbelt or pocket, or it fits nicely in glove box, purse, brief case, backpack, and everywhere you go.