2 in 1It is not only an LED bicycle light but also an LED headlamp with an adjustable headbandPowerful bicycle light3T6 LED high quality powerful light, 4000 maximum lumens, extended LED life (100000 hours)4 Modes to Choose1 bulb-2 bulb-3 bulb-strobe; 8.4V lithium battery, full charge takes six hours, 1T6 takes about 5 hours, 3T6 takes about two hours and 40 minutesComes with 5 accessories: EU plug adapter + lithium batteries + adjustable headband + rear mtb headlight + O-ring, allows you to use it worry-free while travelingLed bicycle light suitable for all kinds of outdoor activities such as camping, cycling and other sportsModel Led CREE XM-L T6Powerful focus for bicycle, with 8.4v battery, up to 4000 lumensWith all necessary accessories to load and install a bike frameWaterproofing designEquipped with a rubber ring for installation, it is compatible with most bicycles, which is very convenient to disassemble and move.Package includes1 x 4000LM 3 T6 CREE XM-L bicycle headlight1 x Rubber ring for installation1 x Charger1 x 8.4V lithium battery1 x Adjustable Head RangeThere are 4 different lighting modesCan be selected by pressing the power button: 1T6 2T6 3T6 StrobeUse two modes of use, you can fix the light on the bike or you can also use the adjustable light strip and use it as a headlightProvides super bright beam, max brightness 4000LMLED quantity (PCS): 3Maximum Brightness (LM): 4000LMVoltage (V): 8.4VLED life: 100,000 hoursMaterial: Aluminum alloyIt is perfect for your travel, hiking, cycling and other outdoor sports, etc