This is the O Scale Just Plug Lamp Post Street Lights (2) from Woodland Scenics.
Lamp Post Street Lights - O Scale
Use to light street corners, residential walkways, parks and more.
20mA/set. RoHS Compliant.
2 Warm White LED Street Lights/pkg
Dimensions 0.339 in w x 3.752 in h (8.6 mm w x 95.3 mm h)
2 Warm White LED Street Lights
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.