Welcome to the line of Coast LED Lenser Pro-Duty LED flashlights. Simply put, these lights produce a whole lot of lumens (actual light) with a whole lot less power required.  These Coast Lenser lights will function for upwards to 10 or more times longer than anything else can provide yet giving you a bright white continuous beam of light.  This is like providing you a car that gets 120 miles to the gallon at the same time the competition can only give you 10 or 12 miles to the gallon.  Along with the efficiency, you also get the 100,000 Led's and Coast's lifetime warranty.  Each powerful flashlight is made to work and made to last like no other.