I seen and heard of fires with those light also, The guy that owns the LFS in our area had a set of those over the fish only tank, and was in the back of the store working on something. Next thing he knew, the smoke alarm was going off, came out front the find the light unit just a smoking. But the time he got across the room, flames start coming out. This was less than a month after he had a simular incident with a different unit of the same type of lights. He no longer will carry, or even order those lights for a customer. By the way, the store was only about 2 or 3 months old when this happened. so it wasn't that the lights were old. There is just something with the wireing and the ballast. Just be aware.