In article ,
Harry Bloomfield wrote:
newshound used his keyboard to write :
The "matchbox" sized solid state relays are readily available for mains or LV
operation.

https://www.ebay.co.uk/itm/SSR-25AA-...AOSwTpZeFO2 Q

It's to switch DC.

It would take a true optimist to guarantee a solid state relay will have a
longer life than a traditional one.

--
*In "Casablanca", Humphrey Bogart never said "Play it again, Sam" *

Dave Plowman London SW
To e-mail, change noise into sound.