New guy and I have a weird question

[dave hummell]

Hello Everyone, I have a 31 coupe I drive around with and I am a perpetual tinkerer. I am going to add a cab heater from Snyder's and I'm going to change to 12 volt alt. Last year I installed the 6 volt led tail lights for safety and I'm wondering if I could run the 12 volt power into a voltage reducer then on to the power for my tail lights and the led center brake light? I know I'll have to get the reducer for my horn. I will change the rest of my bulbs to 12 volt. My girlfriend says get some heat in it before fall. Thank you Dave