2 yellow 1 white ground signal A resistor is included which must be used. Suitable for 12volt DC power supply.
Eckon ES23 2 aspect red/yellow kit round head
Eckon ES26 2-2-2 aspect home 3 way junction signal kit round head type-
Eckon ES19 2-2-2 aspect home 3 way junction kit round head
Eckon ES5 2-2 aspect home junction kit round head OO Gauge
Eckon ES5D 2-2 aspect distant junction kit round head
Eckon ES14 2-Light (Red/Green) Ground Signal - 2 or 4mm Scale