1. First of all, we can first check whether the LED lamp bead does not work properly due to the power supply part. If it is, check the power supply line. If the power supply is normal, the LED lamp bead is connected to the above target. The lights will come on.

2. Next, in addition to excluding the power supply, if it is still not on, we also need to check the positive and negative pins of the Led lamp beads to see if the Led lamp beads we operate are operating correctly. Connection, if there is an incorrect operation that causes the lamp bead to not light up, it can generally be solved by re-welding the LED lamp bead.

3. Check whether the LED lamp bead is not bright due to the false welding of the LED lamp bead pins, the temperature is too high during welding, and the LED lamp bead formed by the welding time is too long. The problem, in addition, pay attention to the temperature during soldering should not be too high, try not to exceed 270 degrees, and it is best not to exceed 3 seconds at any time.

4. Check the current of the LED lamp bead, check whether the current at both ends of the LED lamp bead exceeds the operating current of the LED lamp bead, if so, it is easy to cause the LED lamp bead to not light up, and the treatment method is to select a suitable constant current. Power supply, try not to buy those cheap power supplies. In order to avoid the breakdown of the Led lamp beads due to the excessive power supply current, the lamp beads will not light up.

5. Excessive static electricity is also the reason why the LED lamp beads are not bright. The solution is to wear anti-static gloves or related protective equipment when DIY led lights to reduce the impact of static electricity on the lamp beads.

6. The quality problem of the LED lamp bead itself can also cause the LED lamp bead to not light up, because some LED lamp bead chips have leakage, which is also easy to cause the LED lamp bead to die after a period of use. The solution is to try to avoid the lamp. The beads are stored in a humid environment for a long time to avoid the leakage of the LED due to the dampness of the internal chip.