This is the O Scale Just Plug Gooseneck Wall Mount Lights (2) from Woodland Scenics.
Use on business structures and rural outbuildings, billboards, signs, factory docks and more. 20mA/set. RoHS Compliant.
2 Warm White LED Wall Mount Lights/pkg
Dimensions 0.874 in w x 0.52 in h (22.2 mm w x 13.2 mm h)
No electrical knowledge or special tools needed...just plug and you're done! The Just Plug 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. For more information, view the Just Plug video.