headlights for my revo..

[jokerjustin]

dam.. ill look for some flashlights i can take apart at radio shack... i really want to use the gift card money... otherwise ill prob never use it......

and would each individual led need its own resistor and how would i know which is the correct one?
edit found a led calculator and figured it out...

im using a 4s lipo.. should i use 16.4 as the source voltage or use 14.8?