The Petzl Actik Core is a great all round headtorch designed for active use. It gives a 600 lumen light with a mixed beam pattern, red light mode and has an elasticated and adjustable headstrap. The multibeam lamp is designed to give a range of lighting so whether you need proximity, movement or distance lighting the Actik Core has got you covered. For power the Actik comes with Petzl's Core rechargeable battery, which provides more power and a brighter beam than AAA batteries that the torch is also compatible with. Being able to mix a rechargeable power pack and regular AAA batteries gives you plenty of flexibility shout your adventure last longer than anticipated. It has 3 white light modes giving up to 100hrs burn time and a maximum 450 lumens, there are also 2 red lighting modes, which are proximity and strobe lighting. Cycling between the modes is easily done with single button operation. Petzl Actik Core Features Mixed beam Red lighting Elasticated and adjustable headstrap IPX 4 Water tightness Simple to use Batteries: Alkaline, lithium or Ni-MH rechargeable Weight: 88g