I have been using the red and green frosted LEDs from Autolumination.com in my 022C switch controllers and LOVE them. They use less power so there is more power to throw the switch, but best of all they don’t burn my arms like the bulbs do! (Yes I am using the 24V bulbs, but that doesn’t help much.) BUT, every time a wheel derails on a switch, and causes the switch to chatter; it takes out the LED in the controller that was lite. Let’s face it, wheel derailments on 022 switches are not a rare occurrence. Does anybody know what could be added to electrically protect the LEDs in the controller.