Modified Lamp position for the RailKing #30-11009 Cantilevered Signal Bridge - See modifications
This accessory is typical of cantilevered style signal bridges. It uses colored signals for signalling a proceed, caution or stop condition.
The signal as shown in the original MTH photo has the red lamp above the amber lamp. This is the same arrangement as used for "traffic" lights. By comparison the RailKing #30-11024 3 over 3 signal has the green lamp over red. On my model I removed the small screw on the signal head, reversed the position of the lamps and reassembled the unit. Now my signal heads have green above amber.
Original RailKing signal shown below. Photos of modified signal shown also.