Spot to focus beam is achievable with a quarter turn of the head. Versatile and reliable, Maglite will get the job done. 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. Powered by two D cell alkaline batteries, this fine instrument has a run-time of 6 hours, 30 minutes on high, and a beam that reaches up to 323 metres range. The Magligte ML300LX 2 D cell torch offers a stealth matt finish which gives a better grip for tactical applications, and has 487 lumens output on the highest setting.