Just installed these rubber o-rings onto our new light strings. They provide a great seal at the bottom of the bulb where it meets the socket. With the occasional tropical downpours here in Florida, I am confident this added protection will keep our lights â€œhappyâ€� for years to come.
I wish I had found these years ago, before corrosion made me replace all of the sockets on the luminarias we put up for Christmas! These little live rubber donuts seal perfectly between the bulb and the socket. My only regrets -- I only needed 22 but had to buy 100, and had to pay a warehouse charge that was more than the price of the items.
I installed almost 500 LED bulbs on my most recent project with these little beauties and consider them an essential part of the entire investment. If you're buying cord sets and installing your own bulbs I'm not sure there is a better way of weather proofing your light sets and protecting your investment especially if you're spending extra for LED bulbs. The O-ring seals the bulb and socket very well. Be sure to get your bulbs in good and snug. If you don't get them turned in good and tight the bulb may not light. It's very easy to check with the light set on the ground and get them in all snug. I suggest lighting it all up on the ground before heading up the ladder.
Purchased more rubber O-rings because they did a great job of keeping the snow out of the sockets which would cause them to crack and break without them.
These O-rings are like the one that used to be on our old lights. They made our lights last much longer because the water stayed out of the socket. It also made sure the socket was less likely to rust out. Well worth the purchase and the effort to install - which is not much more than slipping it on the base of the light and screwing the light in. The nice thing is they also help keep the lights in the socket they don't start turning, because the o ring help keep the light tight in the socket. Get these