This LED headlamp flashligh is motion sensored, has lumens of 200, rotates at a 45 degree angle and is waterproof and adjustable. It can even fit a hard hat for those working in hard hat areas. It adjusts to fit a persons head or a hat. It is waterproof so it can be used out in the rain. It is light weight so as not to weigh down your head. It can be rolled up and placed in a backpack or a purse, travel bag or a glove box. Pretty nice headlamp.