The urban lighting design of led wall washer creates a beautiful, warm and bright night environment, which enriches people's night life. It is the responsibility and mission of the lighting design scheme to design a lighting environment with good lighting quality, sufficient illuminance, and safe and convenient use.
Many outdoor lighting manufacturers blindly pursue the high brightness of LED wall washers, increase the current to increase the brightness, and then increase orders. However, this will cause great trouble to consumers, because as the current increases, the heat generated by the lamp beads of the LED wall washer will increase sharply. When the current exceeds a certain value, the lamp beads are likely to be damaged. Even if the lamp bead is not burned, it is likely to directly reduce its service life. Therefore, when designing an LED circuit, it is necessary for the LED to work under an appropriate working current, and it is better to design a constant current source to work.
Then another reason for the lamp beads to burn black may also be due to oxidation. If the electrode is an aluminum electrode, it is easy to be oxidized and blackened. Gold electrodes may also be vulcanized, turning black.
Of course, in addition to these two main reasons, there are also some secondary reasons, such as poor quality of lamp beads or poor heat dissipation. There are still a few things with good quality and low price, and the lamp beads are also worth every penny, and the quality of the lamp beads that are too low will be worse.
There is also a heat dissipation problem. The heat dissipation of LED wall washers is very important. If the heat dissipation is not good, it will not only cause damage to the lamp beads, but also have a great impact on the entire LED lamp head.