This Miller Engineering Light Works USA Conrail Animated Rooftop Neon Billboard features realistic animated flashing lighting. The working billboard includes assembled electronics plus a AAA battery holder that uses three cells. This smaller-sized sign includes an etched-metal lattice support measuring only 1 x 1-3/8′ 2.5 x 3.4cm - perfect for use on N Scale, Z Scale and small HO Scale rooftops. Electroluminescent light sheet is paper thin and produces no heat. Complete instructions are provided for the easy assembly of the animated neon rooftop billboard and its support. Use the Conrail Animated Neon Billboard to add realism to your layout′s rooftops. Looking for more realistic animated signs? Check out the entire line of Miller Engineering animated neon signs.WARNING: This product can expose you to chemicals including Diethylhexl Phthalates, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov