High Powered Portable LED Flashlight,Zeasun 900 Lumen 5 Modes Handheld Tactical Flashlight Military Grade Tac Light,Use Rechargeable 18650 Li-lion Battery or AAA 3 Batteries with Charger FLASHLIGHT CASING: Made of Aviation Aluminum Alloy and Hard Oxidation Treatment with Good Quality, Wear Resistance and Corrosion Resistance. RESINS OPTICAL LENS: High Transmittance Hawk-eye Condensing Lens to Contract and Spread Light Beam, and Make Light Spot Perfect. FINE WORKMANSHIP: Fine Copper to Conduct Electric (Tail Is Fine Copper Cylinder) to Improve Heat-resistant and Conductive Quality. POWER SOURCE: 18650 Battery(Included) or 26650 Battery(Not Included) or 3 AAA Battery(Not Included) 5 Modes: High, Medium, Low Beam, Strobe and SOS function. And You Will Get A Complimentary Valve Core for Bicycles. AFTER-SALE SERVICE: 30 Days Full Refund Service Without Any Bother, Your Satisfaction Is Our Service Aim. If You Are Not Satisfied with Our Products, Please Feel Free to Contact Us.