A bright addition to any HO layout day or night! SceneMaster LED Streetlights come fully assembled, and are easy to install in new or existing scenes. Based on typical North American style lights, other features include: Fits steam-, diesel- and modern-eras Built-in resistor Use w/12-16V Regulated Power Supply #949-4799 (sold separately) 1/4′ 0.6cm base for easy layout mounting