Have used a 14v grain of wheat bulb in amber thats available here
Then I started using an led as pictured here,only I had to add a 1/4 watt resistor to them, this one i used a 1/2 watt i believe....Now i find out that led's are available with an integral resistor so you don't have to jump through all the hoops.. I just went down to my local eletronics supply house, not radioshack, a real electronics store.. and they had test board that you can compare all the led's on for brightness and color and I looked through them until I found a color and brightness that looked correct and that would fit in the available space.. On a couple of them I had to grind the outside diameter of the led down a little to get it to fit. Hope that helps.
Originally Posted by wool