As usual, the Tip of the Day comes courtesy of a customer question. They wanted to know how long a standard string of Christmas lights should last before a bulb burns out. For this question, I contacted one of our main vendors. I was told that a standard string of Christmas lights whether it be a 50 light set or 100 light set should be able to last 1000 hours. We are talking about AC powered strands of light only. So, do not apply this to any kind of battery powered light or strands with different types of bulbs such as LED, C9, or fiber optics.

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During the Christmas season, we are frequently asked, “How long is this set of Christmas lights?”

If it is a standard strand of Christmas lights like the picture above, take the number of lights and divide by 2. For instance, a strand of 100 lights would be (100/2=50) 50 feet. Typically it is right around this number if you include the length of the lead cord.

If you want a more precise way, measure the distance between the lights and multiply that number by the total number of lights. For example, 100 lights with a 5″ distance would be (100×5″=500″ and 500″/12=45 feet) 45 feet.

Remember, this tip only works with standard light sets. It does not apply to icicle lights or the various other forms of lights with different bulbs. Also, we sell a light strand that is specifically marked with a 4″ spacing and the tip will not work with them.

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Hope this helps!