Really? To see? Neons?? Also purple is not your best option when you need visible light
You really need some lights? get some yellow PIAA fogs or something...4500k is the most usable light as far as human sight is concerned.
If you're going to use them to "pimp out yo' ride" then you can add me to the list of people who are going to laugh at you for wasting money to make your car look awful. Its a sad business this one..
"Sweet neons yo, dat shit is PIMP"
Hmm..OH SNAP!
Also I dont have any info on this type of stuff, but theres someone on these forums from Australia that might be able to help you, although arguably if they are for "show" then no one will really be able to help..