Lightweight and powerful, with two different beams, the Petzl ACTIK CORE is ideal for outdoor sports. It boasts an impressive 350 lumens to help you power through when the mountaineering, running, hiking and backpacking.The red lighting mode preserves night vision and prevents you from hurting your companion\'s eyes with bright light. The reflective headband aids visibility and is equipped with an emergency whistle for rescue situations.The Petzl Tikkina is a HYBRID headlamp, meaning it comes with three standard batteries and is also compatible with the Petzl CORE rechargeable battery.A versatile head torch equipped with Petzl\'s innovative CORE battery.Designed for proximity lighting, movement and distance visionWhite and red lighting settingsCharge battery via the micro USB portAdjustable elastic headband with emergency whistleLight output: 350 lumensWeight: 82gEnergy: 1250 mAh CORE rechargeable battery (included)Battery compatibility: alkaline, lithium and Ni-MH