Nitecore HC30 1000 Lumens 162m Beam Distance CREE XM-L2 LED Headlamp With 1 Piece Nitecore NL183 2300mAh 18650 Battery And 1 Piece Battery Case 1. Features Advanced Temperature Regulation(ATR) technoogy 2. A CREE XM-L2 LED delivers 1000lm impressive flood light 3. Powered by 1*18650 or 2*CR123 lithium batteries for an extensive runtime of 330 hours 4. Super compact and lightweight full-metal construction provides flexibility in use 5. Five rapidly switchable brightness levels and three concealed spcial modes