Rusty Traque posted:The headlights are LEDs, you'll need 1.5v (or better yet, 1v) for them otherwise *poof* and I haven't found an easy way to change them. There was no mention of needing headlight resistors and I blew mine out with an MRC steam decoder, also blew out the headlight functions of the decoder.
Unless the headlights are red LED's, they require more like 3V. LED voltages track the color of the bulbs. The color emitted is due to the mixture of materials used in the semiconductor layer of the LED. The different materials also affect the operating voltage of the LED.
IR and red LED's operate near 2.0 volts, as you go up the rainbow, the operating voltages get higher. White and blue LED's are similar, typically around 3.0-3.3 volts. A white LED will not light at all on 1.0 volts, I can assure you of that.
