AGPtEK CREE LED Lumens Waterproof Bike Cycling Bicycle Light Hand-free Headlamp HeadLight with Rechargeable Battery/Charger for Camping Hiking Bicycling Riding Made of high quality aluminum alloy, this bike light is sturdy and durable enough for long time daily using. Mode Arrangement: Single LED &gt; 2x LEDS &gt; Strobe Model of Led: 2x CREE XM-L U2 Whit Led. WHITE LED bright can come to max 4400 lumens. Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent. Waterproofing design. Aluminum alloy casing. Aluminum alloy reflector.