GRDE 5 Mode Cree XML T6 LED Flashlight with Rechargeable 18650 Battery, AC Charger, AAA Adapter, Battery Sleeve & 360 Degree Rotation Bike Mount High quality aluminum alloy; Lamp Life: Approx 100000 h ;Comfortable Touch Feeling. Power Source: 1*18650 battery(Included) or 3 AAA Batteries(not included),Super Convenient. Zoomable,Skid-proof Design &Water Resistant Design;Perfect for Outdoor etc 5 Switch Mode for Flashlight: High / Middle / Low / Strobe / SOS,Can Set as Your Enjoy! Included 360 Degree Rotation Holder,Can Install Flashight as Bike Bicycle Head Light too.