This is the Heavy Duty 80 Watt AC Transformer from Williams by Bachmann®. Suitable for Ages 14 & Up. FEATURES: Traditional heavy-duty design with 80 watts of AC power UL listed Variable power control to track and accessories (0-18 volt variable AC track power output; 7-16 volt variable AC track power output) Horn/whistle, bell, and direction buttons Power and overload indicator lights On/off power switch Compatible with all AC-powered locomotives and accessories Perfect for all AC trains sets and small- to medium-sized layouts Includes detailed instruction manual INCLUDES: One Heavy Duty 80 Watt AC Transformer tlh 8/12/10