LED Lights and horn

[unluckyeddy]

So forgive me if this has been asked before.

I am rebuilding my 1985, and I have to replace all the indicators on my bike, as much as I want to keep her original I also want brighter indicators, had anyone run any LED lights on theirs?

Also I'm not a big fan of how quiet the horn is and I want to add a 135DB air horn. I'm just not sure that the electrical systems can handle running the micro compressor.

[knoizy]

IIRC there's a relay issue with LEDs not working on the stock relay but just swap it out for a compatible one. There was also a figure floating round for the spare watts in the charging system, any idea how much power the horn needs?