Lucas SFB100 Flasher Unit

Lucas SFB100 flasher unit. 12V, 42W capacity.
Aluminium can with integral mounting bracket. 3 x screw terminals marked X, P & L. Can be used for both positive and negative earth vehicles.
X = Power in, P = feed to warning lamp, L = Flasher signal out

A replica version (better quality than the Lucas one!!) is also available.