1 pc CREE XM-L2 high brightness LEDCNC Aluminum heat sink light capMode memory function Day flash mode8 different modes (Boost mode, 3 steady modes, 4 flashing modes, SOS mode)Quck release rechargeable lithium ioon battery (3.7V 2200mAh)Quick release universal bracket (fits all roudn and AERO style bars)Mode indicatorLow battery, charging and fully charged indicatorAutomatic fully charged cut-off systemHigh precision optical lensWater Resistance (IPX 4) Recharge time 3 hrsSide visibilityDimensions: W30mm x D31mm x H111mm Weight: 0.12KgIncluded in the pack:RB-25 (Handlebar bracket)USB-WP (Water resistant USB cable)LX-BAT-2200 (LG Lithiuim ion battery 2200 mAh)