Okay so heres my question, I really haven't done a whole lot when it comes to anything with my car, I own a black 06 monte carlo lt(coupe) and I want to get a purple light for my dome light, I have been told by my friends www.superbrightleds.com is the best hes seen for LEDs and price, while looking at the selection i've seen one festoon bulb i like. heres the link:

http://www.superbrightleds.com/cgi-b...on_4410-x9.htm

see the problem is i have no idea if this will fit as its a 44mm festoon bulb and i don't think thats what my car can have in it? I can also get sizes such as 39mm, and 42mm, will any of these fit?

 

http://cgi.ebay.com/ebaymotors/White...Q5fAccessories
Somthing else to think about, this is what I have(not exactly,very similar). Yes, its 31mm but it still works its just not a perfect fit. These things are SUPER bright.

And for the 2 on the floor and the 2 in the mirror, I got somthing like these, they are also SUPER brigh, but you have to be carful with them as the wires come loose if you dont get them in teh slot the first try, but they offer returns on any product that is defective>>>>
http://cgi.ebay.com/ebaymotors/2-pcs...item5635edabda
Like I said, these are the brightest ones Ive ever seen. Whatever you decide to go with, make sure its with the true diode and not that magnifing glass crap.
Also, you should be able to use any size between 31 and 41 mm. Im pretty sure anything bigger than that will be too big.

 

Okay, I found these. These are the ones that would fit in your dome light 41mm
http://cgi.ebay.com/ebaymotors/White...item563aec63e5
These are white, you would have to find the color you are looking for but this is the size that fits teh best.
below is a pic of the rip off one with the magnifing glass LED knock off>>



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alright thank you im not sure exactly what im going to do just yet, my friend is buying some from superbrightleds too and i would like to save on shipping, so if that helps ill go for it but thank you for a awesome full answer to my question

 

Oh, thats no problem. But if you do decide on going with the ebay lights for the floor and rearview, you have to make sure you get it in the slot the first time because the wire can fall out. But yeah those are very very bright. Just giving you some info. I sure enjoy mine.