Petzl Actik Core LED Headlamp - ACTIK Core with a rechargeable battery! The ideal rechargeable headlamp to extend your dynamic outdoor activities. Casting 600 lumens, ACTIK CORE provides powerful and comfortable lighting to go with you when you're running, trekking, or mountaineering. Its phosphorescent reflector makes it easy to find in the dark and red lighting keeps you from blinding those around you when you’re with a group. ACTIK CORE comes with the CORE rechargeable battery and also works with three standard batteries, thanks to its HYBRID CONCEPT design.