|Steel bodied relay with integral bracket. As Lucas SRB111
Horns normally require a relay, if you already have horns fitted to your vehicle then when you are replacing them the relay can be left alone. If however you are creating a horn circuit from scratch (eg building a Kit Car) or adding additional horns (eg extra-loud or musical horns) then a relay should be fitted.
12volt 20amp capacity.
Also suitable as a relay for operating driving lights, cooling fans, heaters etc.