Review on Waterproof Connection Weatherproof Electrical Decorations by Paarvin Freedman

The device is made of good material. The overall design lends itself very well to caulking. The only problem is that in cold weather, the four tabs on the corners of the cover are very difficult to detach. This is an addition to my previous review. I used them to close the connection between the extension cord and the Christmas lights. Tonight I had to unplug the extension cord from the light and found water in the cap. The side where the extension cord goes in appears to be waterproof, but the seals around the Christmas garland cord may not be tight enough to keep water out. My tip: Works great with two round extensions lined up, but not so much with much smaller Christmas lights.