The Blinder 600, 700, 900, 1000, 1300, 1400, Blinder E range (front lights) & Blinder X range have two mode types - flashing and steady. To change between the two mode types quickly double press the lights power button.
If your light only seems to offer flashing or steady modes, turn it on and then quickly press the button twice to switch between the two mode types. Then, press the button once to change and select your preferred mode.
If you have an StVZO version light (sold in Germany), these lights do not have flashing modes as per StVZO regulations.
For Blinder 600, 900 & 1300 lights:
For Blinder E Bike & Blinder X front lights: