LED turn signal bulbs?

[DK832]

I have upgraded to DELTA's H4 headlights, LED tail lights from Mustangs Plus and am now looking for LED bulbs to replace all the rest. I see the products available (I think) in the US but the sizing numbers confuse me? They're called 168, 194, T10, H11 and what have you not...

What are the correct ones to replace my 69 front position lights, front turn signals and side markers? And whats a good source?

I figure I must replace the mechanical turn signal relay for an electronic one too? Arent they load sensitive? Will any modern relay do?

 

[70dvr]

Yes the flasher is load sensitive. I've had a cheap electronic one in my car for a couple years and it has worked fine. Try this site for bulbs someone posted it a few days ago.http://www.superlumination.com/

 

[DK832]

Thanks, 1157 and 194 is what I need it seems. And they have electronic flasher relays as well.