Have a Double Schmidt E6 headlight set, that I never got around to installing,
I am planning to get a E delux LED light, then I will have 2 primary and the 1
secondary light , surplus..
the double lights are popular with faster Brevet riders,
to keep from out running their headlights on those downhills at night.

Its been a dark wet winter ,and bright lights are good when the weather is bad..