Cessna landing light switch

I have a C-172B that has the dual landing lights in the wing. The first
position on the pull-out light switch turns on only the taxi light (at
least I assume it is for taxi as it is aimed so low) and the next
position turns on both (landing and taxi). Does anyone know if there is
a legal replacement pull switch that will turn on one or the other but
not both? I'm thinking I could cut such a large and unnecessary power
drain while the engine is usually at idle during descents. (Adding all
those other bells and whistles over the years is beginning to show the
need for some power conservation in other areas) Thanks in advance.

Jim