5 Lighting Modes & LongLife:Press the headtorch power switch control 5 light modes (T1 bright, T2 bright, T1+T2 bright,T1+T2 middle ,SOS mode),which work in low mode for 10 hours after a full charge.The lifetime of the hard hat head lights is over 100,000 hours.Lightweight & Adjustable Headband:Weighing only 4.2 ounces (with batteries).Designed elastic headband makes this light perfect for long distance runners looking for a comfortable fitRechargeable Batteries&Mirco USB:Build-in 2000Mach rechargeable batteries,Rotating the headlight will expose the USB interface. The headlamp can be charged via computers, car chargers and power banks, etcRechargeable Batteries&Mirco USB:Build-in 2000Mach rechargeable batteries,Rotating the headlight will expose the USB interface. The headlamp can be charged via computers, car chargers and power banks, etcIPX6 Water Resistant & Detachable:IPX6 waterproof and dustproof grade,also perfect for the rainning day, snowing or other IPX6 Water Resistant & Detachable:IPX6 waterproof and dustproof grade,also perfect for the rainning day, snowing or other emergency situations.This lamp head can be detached and used alone, such as clipped to a bicycle as headlight or hard hatsemergency situations.This lamp head can be detached and used alone, such as clipped to a bicycle as headlight or hard hats