Hello everyone, I am a beautiful lantern. Today, let ’s introduce the problem of the voltage of LED lamp beads for LED lamp beads. The following is the summary of this problem and related issues. Bar.

1. How to replace the LED patch lamp beads 2. What is the current of the patch LED lamp beads 3. Why is it difficult to welded with patch LED lamp beads 4. 5. How to replace the parameters of each model of the patch LED lamp beads LED patch lamp beads

1, LED patch lamps are broken, if the LED power supply is damaged, buy the voltage, current, etc. The power supply of the parameter can be replaced. This is why because the manufacturer uses a reflux welding process during production, it is not welded with electric iron, and we cannot have this device.

2. First of all, you need to be significantly welded and soldering. The difficulty of welding operation is that the LED lamp beads are made of organic materials and are not resistant to high temperature. At the same time, it is welded on the thin copper of the aluminum substrate. We are welded with LED lamp beads on the heat dissipation tablet. The temperature of the soldering iron head is lowered, the aluminum substrate is not dissipated, the tin cannot melt, the temperature will be raised, and the lamp beads will burn out. Therefore, we must find a way to take some measures to resolve this contradiction.

3. You must know the type of LED currently used, such as SMD5730, SMD5050.

4. Buy the same type of LED again. If you use the best iron soldiers that can be adjusted, we must first find a way to heat the aluminum plate to a certain temperature, and then increase the temperature of the electric soldering iron to adjust it to the temperature that can melt quickly. Use the soldering head to contact the welding joint, then use the mule to win the damaged lamp beads, then clean the pad, and then slide the appropriate amount of tin on the pad. Press it gently. At this time, lower the temperature of the soldering iron head a little, and use the tip of the electric iron to click the edge of the exposed pads. The movement should be fast. At this time, quickly remove the soldering iron head, and then weld the other end in the same way. When welding the other end, do not press the lamp beads with a mule, otherwise the lamp beads will not be on.

5. Finally, welding the original bad LED, and then replace it with a new welding.

6. Because the life of the LED is generally long, it is not easy to damage except for the quality reasons. You can see if the welding foot is welded.

is the current of the LED lamp beads

1, which is 60mA2, 5050 patch lamp beads have 3 PN knots connected in parallel, the rated current is 60mA, 3, if the current is increased, the lamp, the lamp, the lamp, the lamp, the lamp, the lamp, the lamp, The life of beads will be reduced accordingly, and it is equivalent to accelerating aging.

Why is it difficult to welded with LED lamp beads

After mastering the characteristics and welding techniques of LED lamp beads, it is not difficult to weld. The LED lamp beads of the patch have two welded joints and three welded joints on the back. The two welded joints are positive and negative poles. Three welded joints are in the middle of the two poles. Because the lamp bead welding joint is close to the line board, the conventional electric iron cannot be welded and it is easy to scal the lamp beads.

It is commonly used for welding platforms to heat the circuit board (back). After the tin is melted at the welded joint, put the lamp beads on it, and the welding is finished.

Another way to welded the lamp beads on the road board with a special hot air gun heating line. Patch elements use low -temperature welds or special welding paste.

LED patch lamp bead communication and DC can be universal

ordinary LED lighting products contain drivers and communicate directly. Special designed low -voltage lamps can be used in general, such as lamps that can be used in 12V communication DC. There is almost no use of other voltages, and it is not easy to find the voltage of the cross -integrated pair. DC is DC, and communication is communication.

LED lamp bead red light voltage is generally 1.8V-2.2V.

LED lamp pearl white light voltage is generally 2.8V-3.3V.

LED lamp bead yellow and green light voltage is generally 1.8V-2.2V.