That'll work, but I suggest you get one that outputs light all around, not directional:
13-SMD 5050 LED White T20 7440 7443 992 Bulb Turn Signal Corner Light Lamp Car | eBay
Car Xenon White 68 SMD SMT LED T20 992 7440 7443 Light | eBay
Also, some people go with red LEDs because the white is TOO white and makes the light look almost pink