To start this the fit on your head can me adjusted beautifully. The actual light itself is bright and definitely give you a path to whatever direction you are looking to lead to and the area around it. It has a strobe function on it that is very effective. A great feature is you can adjust the width of the beam of the light. It is very amazing. The power source of this light is also amazing. You can use the rechargeable battery that come with this light. This is accompanied by a usb charger cable for when you are traveling and a A/C power source. Don't think it stops there because you have two more options. That is a 3 triple A batteries or a car charger port for the last option. Need I say more. The headlight is nothing less than great!