The Lumonite Leader is the most efficient LED headlamp of all time! It provides a light performance of an unimaginable 6838 lumens and a range of a whopping 388 metersAll in a lamp that weighs only 155 grams. At the time of writing, Leader is the only headlamp in the world that has this maximum ratio between power, weight and physical size. The measured luminous flux is now a whopping 6838 lm Neutral color temperature of 5234K Extremely light lamp head (155 g) Separate battery, long operating time (2-59 h) Backup light function when the battery starts to run out Long range of 388 m Very wide light pattern, with diffuse light more than 180° Illuminates the entire field of vision IPX6 protection class on the lamp head Wide range of accessories available GoPro Compatible Mounting - Unlimited Mounting Possibilities 60 month warranty Package includes Lumonite DX6500 lamp head Protective rubber shell for the lamp head Lumonite Slimcore 100 lithium ion battery Lumonite D-wall mains charger