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The wall washer light is mainly used for building decorative lighting, and also used to outline the outline of large buildings. Because LED has the characteristics of energy saving, high light efficiency, rich color and long life, other light source washing wall lamps are gradually replaced by LED wall lamp, and the number of technical parameters of LED wall lamp is similar to that of LED.

LED wall lamp has large volume and good heat dissipation, so it also greatly reduces the difficulty in design, but in practical application, there will be constant current driving not too good and many damaged. So how to let the wall lamp can run better, focus on control and drive, control In terms of system and driver, learn the LED constant current. The high-power products related to LED will mention constant current drive. What is LED constant current drive? Regardless of the size of the load, the current of the LED remains constant. The circuit is called LED constant current drive. If the wall washer uses 1W LED, usually 350MA's LED constant current drive, the purpose of LED constant current drive is to improve LED's life and decay. The choice of the constant current source is to choose the high efficiency constant current source as far as possible according to its efficiency and stability, so that the energy loss and temperature can be reduced.