Here are some pics of the pre-just plug WS Depot, purchased Jan ‘17. The building has three leds and, as you see, an open control. Probably a generic board for different buildings. It had a pigtail and was touted to run on 12-18v AC/DC. I think I got everything() looks pretty basic. Let me know if you need another shot or angle. Edit: pulled it apart and took shot of back of board and add closeup of bridge ID. Might be useful.