Color: Dark Earth/Black Tactical Runtime: 1.5 hours Bazel Diameter: 28mm Length: 91mm Rail Type: 20mm Weaver Picatinny rail Batteries: 2 pieces 3V CR123A (not included) Material: Aluminum Output: Constant / Momentary Brand Name: NoEnName_Null Model Number: X300 Ultra Glock Colt 1911 SIG P226 Weapon Light Flashlight Hign-concerned Chemical: None Origin: Mainland China Light Source: LED bulbs Choice: yes semi_Choice: yes