Safety design for your cycling Intelligent circuitLow voltage protection, with gear memory function TYPE-C chargingEfficient charging, overcharge and overdischarge protection, automatic stop when full Independent double switchImplement a variety of lighting modes Waterproof and anti-dropComply with IP65 waterproof standard, 3 meters anti-drop height, ensure worry-free riding in harsh environments Indicator function The green light indicator flashes when the battery capacity is less than 20%, the indicator light flashes when charging, and the light stays on when fully charged Main light (3 Seoul SZ5 lamp beads): Four lighting modes, high light, medium light, low light; every time you press the switch button (left button), the lighting mode switches once, double-click to flash, Press and hold for 1 second to power off. Description: Endurance: 4-35h/4-33h Battery: 1100/350mAh Charging: 2.5/1.5h Gear: 8/12 Weight: 45g/33g Fall resistance: 3 meters Waterproof grade: IP65 Box size: 116*78*36MM \