There is a widget made for QBP to mount a Light from the center bolt that Holds Your V brakes On.

I had a Braze On Added to my Low Rider racks Hoop then re powder coated , 1st I made a Flashlight battery pack light with wired

Halogen head & bulb taillights , then LED lights got better & I had another bike to ride daily thru the winter , so the summer touring Bike got a

"light mounting fork knob" from Paul's CNC machines ,. to Put a Handlebar Battery light on it when It was going to be dark.

Usually I've made camp or found the Hostel, before then.