Summit's Stormforce Sensor Headlight is a heavy duty and high-tech head light perfect for intense hiking trips. With automatic sensor headlights, this headlamp will automatically turn on as you start walking, or if something moves across your path, and will turn off when you are motionless to help conserve the battery. Weighing at just 45g and with an adjustable head strap, it will feel comfortable and lightweight on your head, ideal if you're planning on taking a long trip that will edge into the evening.