Nitecore HC30 1000 Lumens Rechargeable LED Headlamp with 2 x 3400mAH High Capacity Batteries, i2 Smart Charger, and LumenTac Battery Organizer Bundle Includes the Nitecore HC30 1000 Lumen Headlamp with two high-capacity 18650 rechargeable batteries, i2 smart charger, Car AC adapter, and LumenTac battery organizer. Five rapidly switchable brightness levels from ultra-low to turbo and three special modes of SOS, strobe, and search beacon. Features Advanced Temperature Regulation (ATR) technology to keep the light from ever overheating Super compact and lightweight full-metal construction provides flexibility in use, while the nylon headband fits snugly yet comfotably in place. Perfect for hands-free lighting activities such as camping, hiking, running, exploring, and other outdoor activities. <span class="a-text-bold">Turbo:</span> 1000 lumens / 1 hr <span class="a-text-bold">High:</span> 400 lumens / 3 hr 30 min <span class="a-text-bold">Mid:</span> 210 lumens / 7 hr 15 min <span class="a-text-bold">Low:</span> 70 lumens / 15 hr 15 min <span class="a-text-bold">Ultralow:</span> 1 lumen / 330 hr <span class="a-text-bold">Strobe:</span> To disorient and alert <span class="a-text-bold">SOS:</span> For emergency alerting <span class="a-text-bold">Beacon:</span> For location signaling