Exposure Joystick Mk.6 Light Bulb Type: LEDPower Source: built-in battery packsBackup Power Source: noBattery Location: internalBatteries Included: yesVoltage Regulator: Modes: high, medium, lowBulbs: 1Lumens: 325Burn Time: [ high ] 3 hours; [ medium ] 10 hours; [ low ] 24 hoursWaterproof: Weight: 103 gRecommended Use: night ridingManufacturer Warranty: