Contura Rocker Switch

[T4rman]

I want to wire some lights to come on with the dome lights and still be able to turn on separately. Basically the ability to run two positive wires and one ground with the ability to chose which positive will complete the circuit and turn the lights one. This looks like what I would need. Unfortunately I don't speak electrical so I need somebody to confirm this is the correct switch.

Carling (ON)/OFF/(ON) single pole V series Contura


SPDT (MM)ON/OFF/ON(MM)
Single incandescent light, wired independently.
Rear barrier between terminals.
Rated 20A @ 12V

Thanks!