How to do the led lamp string (DIY tutorial)

For the led lamp string how to do (DIY tutorial) related introduction xiaobian today summarized the relevant information to share with you, I hope to help you oh.

The principle of the LED lamp string

LED lamp string is a lighting device made of a number of LED lamp beads in series, which can be used for indoor and outdoor decorative lighting. LED lamp string has the advantages of energy saving, environmental protection and long life, so it is widely used in home decoration and festivals. If you are interested in DIY, the following will show you how to make LED lights.

We need to prepare some materials and tools. The materials include LED beads, wires, resistors, plugs, wires, etc. Tools, need to use wire stripping pliers, welding tin gun, tin core and so on.1

Select the LED lamp beads

We need to choose the right LED lamp beads. When choosing, pay attention to the color and brightness of the LED beads. Common colors are red, yellow, blue, green, and so on, you can choose the appropriate color according to their own needs. In terms of brightness, LED lamp beads generally have different brightness levels, and you can choose the appropriate brightness level according to the needs.

When selecting LED lamp beads, you also need to consider their voltage and current. LED lamp beads has a certain working voltage and working current, need to choose the appropriate voltage and current according to the actual situation. Generally speaking, the common operating voltage is 3V, 5V, and the working current is 20 mA.

Connect the LED lamp beads

When connecting the LED beads, you need to connect the LED beads with wires.1. Peel the insulation layer of the wire to expose the wire core. Then, the metal wire core is connected to the positive electrode and the negative electrode of the LED bead. Generally, the metal wire core is connected to the positive electrode of the LED bead, while the other end of the wire is connected to the negative electrode of the LED bead.

When connecting the LED lamp beads, we need to pay attention to the connection direction of the positive and negative poles. LED lamp beads have the positive and negative pole points, the positive pole is generally represented by long feet, the negative pole is generally represented by short feet. Therefore, when connecting, the positive pole of the wire is connected to the long foot of the LED lamp bead, and the negative pole is connected to the short foot.

Add resistance

When making LED lights, you also need to add resistance to limit the current. LED lamp beads need a certain amount of current when working, too large current will cause the LED lamp beads to burn out. Therefore, in order to protect LED lamp beads, it is necessary to add appropriate resistance to the circuit of LED lamp string.

The resistance of the resistance can be calculated according to the voltage and current of the LED bead. In general, Ohm's Law can be used to calculate the resistance value of the resistance. According to Ohm's Law, the resistance of the resistance is equal to the ratio of voltage to current. For example, if the operating voltage of the LED bead is 3V and the operating current is 20 mA, then the resistance with a resistance value of 150 ohms can be selected.

connecting plug

When making LED light string, you also need to plug it into the power socket for use.1. Peel the plug wire to expose the wire core. Then, the metal wire core is connected to the positive and negative pole of the LED lamp string. Generally speaking, the metal wire core is connected to the positive pole of the LED lamp string, and the other end of the wire is connected to the negative pole of the LED lamp string.

When connecting the plug, it is necessary to pay attention to the connection direction of the positive and negative poles. The plug has both positive and negative poles. Generally speaking, the red line is the positive pole and the black line is the negative pole. Therefore, when connecting, the positive electrode of the wire is connected to the red line of the plug, and the negative electrode is connected to the black line.

Test and use

After making the LED lamp string, testing is required to ensure that the LED lamp beads work properly. You can insert the LED lamp string into the power socket, turn on the power switch, and observe whether the LED lamp bead is on.

If the LED bead is not on, it may be due to incorrect connection or unstable supply voltage, etc. You can check that the connection is correct to ensure that the positive and negative electrodes are correctly connected. If it still works properly, check that the voltage is stable or replace the LED beads.

After passing the test, you can use the LED light string normally. LED lamp string can be installed in the appropriate position to play the role of its lighting and decoration. When using, we should pay attention to safety to avoid electric shock or short circuit and other accidents.

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With the above steps, we can easily make the LED lamp strings. Just need to choose the right LED light beads, connect the wire and resistance, add a plug, test, you can get a string of bright LED light string. Making LED lights can not only meet their DIY needs, but also add fun to family decoration and festival celebrations. Hope that the above introduction is helpful to you, I wish you a success in making LED lamp string!