Lionels LEGACY PowerMaster provides superior AC track-voltage control for your command-equipped layout Use it with any Lionel remote to remotely adjust track power from a Lionel PowerHouse or other external AC transformer (sold separately). Now, run conventional engines and fine-tune your command-equipped locomotives, lighting and accessories with precision. The LEGACY PowerMaster allows for 32, 120, or 200-speed step AC voltage control. Lightning-fast over-current protection trips the PowerMasters internal breaker before those of the power transformer, safe-guarding your locomotive electronics and layout wiring. Then the PowerMaster lets you restore track power from your remote. Stop searching for tripped breakers hidden under your layout! Manufacturer: Lionel. Model Number: 6-37146. Scale/Era: O Modern. Model Type: Electronics & Wiring.