Do you already have them or getting a great deal on them? I find the led lights various companies made for the military to be very sub par in the reliability department.
Installation in very straight forward. The hardest part is matching the correct wires up. Which if your number tags are legible then that shouldn't be an issue. They are much brighter and way cooler looking than ordinary incandescent bulbs and housings.
As I said above, my biggest gripe is how expensive and unreliable they are. Unlike a normal housing, when these go out you don't just replace a bulb. You replace the whole unit.