7L-001-006 Junction Signal GWR Left hand with two arms, shorter post to LeftFinely detailed semaphore signal. This signal comes ready made with working arms and led lighting in the appropriate colours to match signal. The arm raises and lowers slowly to add to the realism. To power this signal you will need a smooth 12v DC supply. We recommend our GMC WM4 plug in transformer. FEATURES Smooth operating servo motors Working LED lights with coloured lenses Robust and yet elegant and accurate design Easy to Install Switch