1 XP-G3high brightness LEDRechargeable lithium polymer battery (3.7V 1050mAh)Mode memory functionDay flash mode4 steady modes, 4 flashing modesQuick release unversal bracket fits all round and AERO style barsMode indicatorBattery capacity and charging indicatorAutomatic fully charged cut-off systemHigh precisionoptical lensRecharge time 2.5hrsWater Resistance (IPX 4)Size (W x D x H): 71 x 43 x 25mmWeight: 0.066Kg / Packing & Package: 0.1Kg