The Actik is a compact, multi-beam headlamp for active pursuits in low light. Its 350 lumen output provides plenty of light for trail running, ski touring, walking at night or cooking in camp. The red light function preserves your night vision for close proximity lighting. The Actik uses 3*AAA batteries, and is also compatible with the Petzl Accu Core rechargeable battery (available separately). The headband adjuster features an inbuilt whistle for attracting attention in an emergency. The Petzl Actik headlamp is IPX4 Water Resistant.