1， high brightness white light， stable， high brightness strawhat type LED lamp， concentrated light beam stability.2， unique cold processing of aluminum magnesium alloy shell.3， the use of the 1 Section 5 battery， more powerful and lasting， it is recommended to use high Ma rechargeable batteries， LED lights more bright. (this product does not contain batteries)4， high brightness LED lamp， long life of 100000 hours， do not have to consider replacing the lamp life.5， strengthen waterproof design， easy to deal with the wild environment.6， switch at the bottom of the switch.7， black， the oxidation process， the general cold metal luster.Friendly reminder: This product can be waterproof， but not suitable for long-term immersion in water and diving!