The Maglite ML300L 3 D cell torch has the same timeless design of the original 3 D torch, and has now been updated to 746 lumens output on the highest setting using LED technology.
Powered by three D cell alkaline batteries, this fine instrument has a whooping run-time of 32 hours on high, making it an ideal light for long night shifts such as security work, or just general regular use where you need a good run-time.
Five different functions of high, low, strobe, eco and momentary are available and are split into four function sets to select from. Once the desired user mode is selected, the outputs can be cycled through using the side mounted QuickClik™ electronic switch.
The function sets are as follows;

#1 General:High, Low, Eco
#2 Outdoor:High, Low, Strobe
#3 Law Enforcement:Momentary, High, Eco
#4 Tactical:Momentary, High, Strobe

The torch will always come preset in function set #1 (general). To change to a different function set simply unscrew the tail cap until the torch no longer turns on, pause for two seconds and then hold down the switch. While still holding down the switch, tighten the tail cap until fully tight and the torch will start to blink after four seconds, the number of blinks indicates the function set. To select the desired set, wait until the torch has done the required amount of blinks (e.g. four blinks for function set #4 Tactical), and then release the switch.
Spot to focus beam is achievable with a quarter turn of the head. Versatile and reliable, Maglite will get the job done.