TecNiq Inc. out of Michigan was called by me last week and told that the light (D-30) failed. I received a new one today with their lifetime warranty. Don't have a clue what happened to the old one but of course, replacing it was a bit of a pain. Very short lengths of the wire coming out of the exterior wall and the fear that I might have to ditch the whole thing caused me to use the "posi-lock" butt connectors instead of the crimp type. Finding the room inside the skin of the wall to push them in and half of the pig-tail that came on the light itself was a bit of a task too. Made the exterior hole a bit larger and then scraped out some of the styrofoam insulation to make the room for the wire. Now, we will see how long this replacement lasts. Still an awesome light if it continues to work. I will try to get a picture soon.