1. Utilizing the newest Cree XM-L LED, the highest output Reaches 550 lumens 2. Moonlight, Low, Medium, and High four adjustable brightness levels, with another two types or strobe, Namely fixed frequency strobe & strobe frequency conversion. 3. The moonlight mode and the high-level output can be accessed directly When the flashlight is off 4. Olight patented lock-out function 5. With a strong removable magnet at the end of tail, the flashlight can absorb vertically on any ferrous object. 6. With a removable long pocket clip 7. Stainless steel head ring can bear higher tensile impaction 8. High efficiency driver circuit, perfectly support 2xCR123A & 1x18650 9. Spring contact structure (on both the 2 poles) is adopted is to Enhance the ability of anti-vibration 10. Low voltage indication: the bottom side switch will shine in red, When the power is low.