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 Eco mode, up to 69 hr With the familiar Quick-Click 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. As seen below, 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 focus system now adjusts from spot to flood with less than 1/4 turn of the head.