Dwarvin DVFC1.5/30 30ft 1.5mm End Glow Fiber Optic Cable

The 1.5mm diameter fiber is the usual first choice in developing your lighting system. This is because it is 2 1/4 times brighter than the 1.0mm diameter fiber and, therefore, typically provides the right lighting for a house on the layout using only one fiber. Larger buildings will require more fibers if all of it is to be lit inside. This size is well suited to both HO and O scale structures.