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Summary: Learn how to test Christmas tree lights in this free holiday video.
"Hello my name is Matt Cail and on behalf of Expert Village I'm going to show you today how to hang Christmas tree lights. Before you even approach your tree with your lights there is a very very important test to do. Make sure that your lights work first go over to your outlet and plug them in make sure that all the lights lite up and that everything is functioning. There is nothing more frustrating than taking all the time and energy and the patience of stringing up and doing a really great job on your Christmas tree lights. Then when you go to plug them in and there is nothing because there is a bulb out or you have a defective light or something else whatever happening to where they do not work. You are already incredibly frustrated as you have to ripe them off your tree and go back to the store and tell that clerk off. Let's avoid that entirely test your lights first right when they come out of the package you get them ready to go find your outlet it doesn't have to be the one that is going to be close but if you want for your own peace of mind to make sure your lights like the outlet go over and test that one first. If you can't get your lights to work by half the time this is a problem of one bulb you'll notice that maybe 1/3 or 2/3 or most of your Christmas tree lights will actually work. Actually they will be a point where they stop working usually what you want to do is go and look at that first bulb that does not work and get a replacement bulb. Now a days in the package they usually come with 2 or 3 replacement bulbs, they are very easy basically to pop the old bulb out and put the new one in. If you take the lights back to the store odds are they will be the first question they would ask you "did you try to replacement bulb", and they can be difficult and otherwise bother some if you have it. So like if this is a real quick maybe 2 minute maneuver to actually help your Christmas lights work."
eHow Article: How to Test Christmas Tree Lights