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Dapols Single post semaphore signals are easy to fit and operate and offer an affordable route to accurately model working N Gauge signals. All signals work on 14V AC / 12V DC and feature;

• Smooth operating worm driven motor tested to 30,000 operations
• Working LED lights  with coloured lenses
• Built in electonics enable automatic reverse polarity after activation. This means push to activate and push to return to normal.
• Robust and yet elegant and accurate design
• Easy to Install