Headlight: High Brightness↔? Long Lifttime↔? Energy-Saving Can be used as a torch 3 Switch Modes: On / Flash / Off Mount holder: Rubber Matting Fits 26-28mm Diameter Flashlight and 16-33mm Diameter Handlebar Rear light:Flashing modes: steady on / flash emergently / flash quickly / flash alternately from left to right / flash alternately from right to left / flash emergently from left to right / flash slowly from left to right