Want new dash lights ,LED?? & more

The instrument panel lamps are bayonet type bulbs, numbers like 158 or 194. I've seen the LED clusters to use there. Here's what puzzles me though... The original bulb and bulb socket will go in turned 2 different ways since polarity doesn't matter.
Polarity does matter with LEDs. They wont work with reversed polarity. I assume those LED clusters come with a socket built on and include instructions for the user.
I went with a conventional type bulb but a more modern / brighter example. I dont have its number now. Member Slantsixdan can provide it if you like.