Nitecore HC30 1000 Lumens Compact Cree XM-L2 U2 LED Headlamp Headlight w/ two LumenTac CR123A Batteries Bundle Includes the newest Nitecore HC30 1000 Lumen Headlamp with two LumenTac CR123A Batteries Versatile - Five rapidly switchable brightness levels and three special modes. Never overheating featuring Advanced Temperature Regulation (ATR) technology Super compact and lightweight full-metal construction provides flexibility in use Perfect for hands-free lighting activities such as camping, hiking, running, and exploring. <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