Lionel O 6-12883 #148 Dwarf Railroad Signal

First of all, these are nice signals. Before installing dwarf signals, I was looking for leds to replace my hot incandescent bulbs in my MTH Realtrax switch lanterns. A lot of work to make that happen, however the Realtrax switch has switch indication on the switch itself and these are used on one of Lionel's switches for the same. Wiring on the switch is green, red, black. I wired the dwarf as follows. Red to gr, black to red, yellow (signal) to black (ground). Perfect. I now have my leds and can throw out the hot bulbs. Atlas does the same with the 6931 signal. No more plastic lenses drying up and falling to pieces from the heat.

I ordered 4 dwarf signals and they only showed 2 in stock and the sales rep. went into the show room and found 2 more. The shipment arrived very quick and everything was in great shape. Will order from them again.

Works well but tricky manual.

Performed as hope for and expected

Have not set it up yet.