Applying NEXTORCH Patented Fresnel Lens Focusing Technology, myStar R delivers a smooth transition from flood light to focused light by simple one-handed twist of the 360° swivel head. It is compatible with the Li-polymer rechargeable battery and 3*AA alkaline batteries to respectively emit 760 and 600 lumens, double protection to ensure long endurance. The head can be adjusted at max 60° angle up and down to realize different lighting needs, and hold steady without waggle even during exercise. High - Mid - Low - S.O.S., four lighting modes can be switched easily through the button on the head.