Woodland Scenics HO Scale Just Plug Lighted Billboards are an easy way to add lighting effects to your layout. Whether along a rural highway, on city rooftops or on busy streets they add flair to any scene. Used as signs for advertising local shops and destinations, they′re staples across North America. Designed to work with the Just Plug Lighting System each Just Plug Lighted Billboard includes factory-installed LED lighting drawing just 20mA.