Can You Cut Led Christmas Lights

As stated you must change the current limiting resister to match.

Can you cut led christmas lights.

You can find led calculators to determine the propper resister but too many different voltages for different leds. We explained in our article answering the question are christmas lights in series or parallel we discussed that while mini lights with small wiring harnesses wired in series cannot be easily cut to custom lengths parallel wired cords can be cut and terminated. R v supply n v led over i led p i led 2 r. No you can t lengthen or shorten standard series wired incandescent and led christmas tree light strings that are made with 2 or 3 wire harnesses.

For instance if the christmas lights stretch to 25 feet and you need to cover 35 feet you will need two 25 foot light strands. Calculate the length of the lights you will need. Twist the two bare wire ends together. Each led has a pair of copper dots at the end.

Unless you are only shortening the strand by five or less individual lights should not be removed because the remaining lights will receive too much power and burn out much faster. Wire cutters again a pair can be purchased in any hardware or electrical supply store. They will be used to cut and shorten your led christmas lights. If you know or can measure the led current for each led end therefore for a series and the voltage drop of each and the applied voltage you could calculate the resistance and wattage of a resistor to limit the current to a safe value.

Led strip lights are designed to be easy to cut apart with a pair of scissors. If however you are installing c7 c9 18 awg christmas light cords with sockets and screw in bulbs that are wired in parallel yes you can shorten them. From there you can connect the leds to a power source either through a quick connector or by soldering. Electrical tape this is optional but if you want to make sure that your wire nuts are secured then it s best to purchase a roll as well.

They re also available online. Yes you can cut led strings down to whatever length you need. If you are handy with a multimeter it is really simple. After twisting the wires together secure with a wires connector.

Step 3 cut a portion of one strand of lights to the length you need to add. Even if they work at first they won t last long. Use wire cutters to strip the ends of the two wires cut in the previous step. When your three strand christmas lights are too long for the place you had intended and you do not have any shorter strands you can shorten your light strand in a couple of easy but time consuming ways.