These signals come with a latex masking pre-applied over each lens. This mask protects the lens from paint and weathering materials. This makes it extremely simply to paint and weather the model out of the package! Once painting is complete, simply remove the mask with a pair of fine tweezers, leaving the pristine lenses underneath.
This model comes pre-wired, so there is no need to fight with small LEDs or wires! Each model uses 38 gauge wires to power the LEDs. This signal is prepared in a common anode configuration, in which a common red wire connects to the positive anode side. Each LED has its own yellow cathode wire, so any of the 4 LEDs can be powered. The wires are approximately 24" long and pre-tinned, making it quick and easy to install on a layout!
This model uses 2 volt LEDs rated at 20 mA. To power the signal at 5 volts, resistors larger than 150 ohms are required. To power the signal at 12 volts, resistors larger than 500 ohms are required. We recommend using 560 ohm resistors.
We understand that on the PRR and other modern railroads, there are more unique variations of these signals. If there is a specific configuration you need that is not in our catalog, please contact us. We will be pleased to help develop a signal to meet your specific needs!