S3 driving light relay

[foot2firewall]

Does anyone know the correct current Lucas part number for the driving light relay? It's a 28RA type, but there are a number of alternative versions to chose from - SRB500 or SRB501 or SRB525. Or doesn't it matter which one!

[markbigears]

I need one of these too. Where do you get them from?

[phillpot]

I think any of those should do the trick.

Can't see any difference between the 500 & 501 ? the 525 has a resistor across the energising coil, I think this could be to do with keeping contacts closed with voltage fluctuation e.g. keeping a fuel pump energised when cranking the engine?
( I could be talking complete nonsense !!! )

Take a look at this , scroll down a bit to find 28RA relays