Class 37/4 DC/DCC Lighting Upgrade .
This is a new design circuit which enables you to take the old incandescent one way bulbs and replace them with modern directional LEDs. This kit is simple to fit and works on both DC and DCC layouts with minimal changes.
running old DC layouts mean that you have directional lighting and only require you to solder 2 wires onto the board. and you have directional lighting. Where as DCC requires the 3 solder Connections to the decoder, common + and the yellow and white DCC connections
To view a fitting video please click Here. https://www.youtube.com/watch?v=eMH1pr4oyd0&t=4s
fitting instructions are provided