Whether you're a professional using a flashlight for work or security, an outdoor enthusiast who takes it camping, or an occasional user wanting it for emergencies at home or on the road, our New ML300L D-cell LED is The Light For All Your Needs. With the familiar 'Quick Clik' system users can, within the 'General' function set, choose Full Power (maximum Lumens): Low Power (up to 143 Lumens); or Eco Mode - a super power saving mode that yields up to 58 Lumens with greatly extended run-time. There are three additional function sets - Outdoor; Law Enforcement; and Military - each offering a different set of functions invoked in a different sequence, for quickest access to the functions the particular user prefers. The Improved, faster-handling 'Quick Focus' system now adjusts from spot to flood with less than ¼ turn of the head.