Woodland Scenics JP5715 Just Plug(TM) Lighting System, Light Diffusing Window Film

No electrical knowledge or special tools needed, just plug and you're done! The Just Plug(TM) Lighting System is a quick and easy way to add realism and interest to new and existing layouts and other projects. Individual bulb brightness can be controlled, and the modular design allows for easy expansion. Just Plug is compatible with DCC and works for any scale.

Eliminates need for building interiors
Diffuses light evenly when lights are on
Windows appear dark when lights are off