QuickClikTM mode selector allows the quickest access to all of the different modes within the 'General' function set, choose Full Power (up to 643 Lumens); Low Power (up to 148 Lumens); or Eco Mode - Featuring improved recharging efficiency and a super p Featuring three additional function sets including Outdoor, Law Enforcement, and Military/Tactical; each offering a different set of functions invoked in a different sequence for the quickest access to the functions each particular user prefers Advanced lighting instrument made in America and built tough enough to last a lifetime while offering a powerful projecting beam with an advanced focus system that adjust from spot to flood with less than 1/4 turn of the head Water-resistant (IPX4), Drop-resistant, National Tactical Officers Association (NTOA) certified and rechargeable making it perfect for law enforcement officers, emergency responders, military service men and women, or anyone that needs a reliable flashlig Superior quality craftsmanship with weather-resistant seals, diamond knurl design and anodized inside and out for improved corrosion resistance and durability making it suitable for camping, climbing, fishing, hunting, or any adventure