NITECORE HC50 565 Lumen CREE XM-L2 LED headlamp, 1x NITECORE NL189 18650 3400 mAh Li-ion rechargeable battery, and LightJunction LED Keychain light combo Utilizes the latest CREE XM-L (XM-L2 T6) LED for a maximum output of up to 565 lumens Purpose-designed for hiking, climbing, camping and general outdoor recreation Compatible with both 18650 Li-ion and CR123A batteries High efficiency circuit board provides up to 400 hours runtime on lowest output level Provides wide 100 degree beam angle