Powered by Luminus SST40 LED LED with a maximum power of 2000 lumens. The maximum peak beam intensity is 15,850 cd and the maximum range is 250 metres It uses an optical lens system with different edges The built-in 5000mAh 21700 lithium-ion battery provides up to 200 hours of operation. The edge switch controls 4 brightness levels and 2 special modes 4 power indicators at the end indicate the remaining battery charge level The intelligent charging and discharge circuit of the lithium-ion battery can serve as a power source with a maximum power of 18 W. Reversible USB-C port with fast QC charging High-performance DC circuit provides stable light power Built-in Advanced Temperature Control Module (ATR) (patent No ZL201510534543.6) Made of PC and aluminum alloy. With clip Setability Waterproof and dust-tight according to IP68 (immersion by 2 metres) Impact resistance up to 1 metre