Wondering if anyone has experience with LED address lights? I'm mean the kind that is wall mounted. Specifically, I would like to find out about

1) Bulb life - the big advantage I would hope to get is the bulbs not needing to be changed every 8 months, or so, as with incandescent.

2) Operating temperature range - Will it work when it's cold (ie. -10 F)

And I would welcome specific recommendations, it will be hooked up to 16v.