400ML Specification: Brightness: 400 lumens high brightness Waterproof: waterproof for daily life Shell material: aluminum alloy material Charging: USB charging Electricity: 2000mA Range: about 200 meters Gear position: high light/medium light/fast flashing Battery life: about 6 hours in strong light, about 12 hours in low light, about 16 hours in fast flash
850ML Specification: Brand: ROCKBROS Model: BC29 Material: 6063-T6 aviation aluminum, PC engineering plastic Battery: 2x21700 lithium battery (10000mAh) Lamp beads: 2x5050 high power LED Waterproof: IPX6 Working time: Strong light: about 10 hours, medium light: about 13 hours, low light: about 74 hours
1000ML Specification:
    Model: R3-1000
    Material: Aluminum Alloy
    5 Modes: Super Bright / High / Middle / Low / Flash
    Waterproof: Daily Waterproof
    Lumen: About 1000 Lumen
    Range: About 200M
    Battery: About 4800mAh
    Charging Time: About 3-5 hrs
