I recently had the pleasure of spending an afternoon with Jackson in his work shop, during which we documented his approach to lighting in his Red Caboose GP9. First up is Jack’s fixture for the end walkway lights. This fixture slides into place behind simple styrene L brackets glued inside the car body.
The LED is a sunny white 0603 surface mount part, procured from John Thut at DCC Hobby Supply (the plug is free, John!) It is only 0.060 long and requires steady hands and good soldering skills. When turned-on, my camera sees it at about 3500K, which would be a warmish but not yellowish fluorescent light color. The part marked 1002 is a 10K ohm current limiting resistor.
Next we have small circuit board for the class lights. These use a golden-white LED that came on a snap-apart PC board. The camera sees these LEDs at about 2700K, roughly the same as a 75 watt bulb.