ive installed these about 18 months ago, and have already had to replace most of the lights. they are not truly waterproof at all, and moisture and condensation builds up in the fixture, eventually causing them to go bad. very aggravating, very annoying. when you calculate the original cost of these, then the cost to replace them after about a year, or less, and all the time and aggravation, it would be better to just buy some really good high quality outdoor low voltage lights that cost a bit mSee full review