Rapido Trains #102082 HO Operating Ditch Lights
LEDs installed inside the housing (No lightways, fiber optics or additional parts needed)
Each package contains two ditch light castings with a tiny LED inside the ditch light and wires coming out the bottom. They are 3V "warm white" LEDs so you will need to add a 470 ohm, 1/4 watt resistor in series if you are wiring them to a 12V decoder function output.
These HO Scale Ditch Lights feature: