Specification:ColorSilverLamp beadXPE lamp beadMaterialABSLumen300LM 5WCharging modeUSB direct charging/solar chargingBattery1200mA lithium batteryModeWeak light - strong light - flash -SOSFunctionHorn + headlight +USB solar double chargeBattery life4 hours of strong light, 8 hours of weak light and 8 hours of flashFeatures:Speaker sound 140 decibels, convenient to carry, safe travel.Built-in 1200 mA lithium battery, USB charging or solar charging, environmental protection worry.300LM luminous flux, 5W power, for you to illuminate the road ahead of the distance.Easy to use, split button.Package included:1 x Solar Power Bike Light