1Using high-quality super bright LED lamp beads, the effective illumination distance can reach 2624.7ft (800m). 2Aviation grade aluminum alloy structure, drop resistance and waterproof, protection grade is IP67. 3It uses 26650 high-energy rechargeable 3600mAh lithium battery and has a battery life of 10 hours. 4With multi-gear mode, strong light/low light/flash, can meet your various needs. 5Professional glass lens with excellent light transmission.