Bike light switch (Help me figure this out)

Hey, I would appreciate any assistance someone can provide me. I not that familiar with this whole electrical wiring stuff. I am trying to wire my headlights on my bike a certain way.


So my headlights on my bike work as following: One headlight is always on. I built in LED rings and want my headlights to operate in the following way.
When the switch is turned on, I want the headlights to turn off and just the rings turn on. When the switch is off, I want the rings to turn off and the one headlight turn on. So in other words, I would hook this switch up to the the headlight wiring (the one that is always on), and I want the switch to be able to turn the headlight off and turn the LED rings on and vice versa.

SPDT center-off switch (I assume you want to be able to turn both lights off, right?). Center terminal goes to power (battery); one side goes to headlight, the other side to the LED rings. Simple.

(You can use a DPDT switch and just not use one set of contacts.)