Permit me a watchpoint concerning LEDs. If it is a red light you want, get a red LED. The LEDs give much stronger than an ordinary incandescent bulb. So if you put a white LED behind a red lens - being a rear driving light, stop light or fog light, the whole thing will turn out bright pink. There are simple red LEDs on the market, which I have put in the fog and cobra stop light, and there are combined / double intensity LEDs, suitable for the driving/stop light combo.
