How do you switch the Raleigh RX10 rear light to flashing instead of constant
Typical - no sooner posted than worked it out.

Pressing the button turns the light back on, but pressing and holding the button eventually turns it on in the mode it was not in last time (i.e. if it was on constant mode then pressing the button turns it back on in constant mode, but pressing and holding the button eventually turns it on in flashing mode.)