DULEX Waterproof Rechargeable Bike Light and Led Headlights Headlamp Set (D06) DULEXCree XM-L L2 900LM LED rechargeable bike headlights Bicycle Light set for your vehicle,while hiking,camping,Riding or backpacking this is an excellent option, Good hand-feeling,Very durable.High energy battery pack support long time lighting. Light source:CREE LED(Import from America) Has 3 different modes to include strobe and SOS. brightness:900 LM. Capacity:4 * 2200 Mah 18650 lithium battery.(8800 Mah) battery pack output Voltage:4.2V DC 1A ,weight:440 g,size:95(L)*39(W)*39Hmm.