Body material: aluminum alloy-light source: XML T6 LED bulb Mode arrangement: high>medium>low>fast strobe>SOS Reflector: aluminum reflector-switch position: on the tail cover Switch type: push button switch Battery: 1*18650 battery (included) or 3*AAA battery (not included) Waterproof design, small size and easy to carry-especially suitable for outdoor activities such as camping and hiking. How to change the flashlight mode There are 5 operating modes: high/medium/low/strobe/SOS. When you click for the first time, the light will be in full height mode. Tap and release the button on the back to switch modes, and press it fully to turn off the light. Package includes: 2 x zoom LED flashlight 2 x plastic sleeve 2 x 18650 lithium battery