I'm shopping my rollercoaster tycoon and adding LEDs. the manual calls for a single #445 twinkle bulb which I bought a replacement for, and at some point pulled the original bulb as I have it here, but cannot for the life of me figure out where it goes/came from. I missed this when I was removing bulbs and cannot find which bulbs go where anywhere in the manual. Where does the single #455 twinkle bulb go?