-41CM(MACE):1 x 18650 lithium-ion battery -49CM: 4 X AA batteries -41CM: 4 x AA batteries -36CM: 3 x AA batteries -36CM(18650 version): 1 x 18650 lithium-ion battery -31CM:3 X AA batteries -12CM: 1 x 18650 lithium-ion battery -Runtime: depends on the Battery capacity -Brightness: 1000-2000 lumens - Beam distance: 100-200m - Body materials: aluminum alloy - Lighting modes: High, Low, Strobe - Water resistant level: IPX6, can be used in water for a short time - Lamp bulb: high-power LED with a 50,000-hour lifespan Note The battery is not include in the package, please buy it yourself, thank you Durable aluminum alloy material Easily smash bricks and glass in worst-case, escape scenarios Waterproof material IPX-6 waterproof material Compact, portable, functional A: Under the seat B: Glove box C: Personal protection Battery powered 49 cm: 4 x AA batteries 41 cm: 4 x AA batteries 36 cm: 3 x AA batteries 36 cm Rechargeable: 1 x 18650 rechargeable Lithium battery 12.5 cm: 1 x 18650 rechargeable Lithium battery -Note: (Due to customs restrictions, battery cannot be sent)