Principle of LED wall washer

Due to the relatively large volume and better heat dissipation of the LED wall washer, the design difficulty is greatly reduced. However, in practical applications, the constant current drive is not very good, and there are many damages. Therefore, How to make the wall washer work better, the focus is on the control and drive, let's learn about the LED constant current controller. Regarding high-power LED products, constant current drive will be mentioned, so what is LED constant current drive? Regardless of the change in the size of the load, the circuit in which the current of the LED remains constant is called a LED constant current drive. If a 1W LED is used in the wall washer, it is usually driven by a 350MA LED constant current. The purpose of using the LED constant current drive is to improve the lifespan and light decay of the LED. The choice of the quality of the constant current source is based on its efficiency and stability. Choose a constant current source with high efficiency as much as possible, which can reduce energy loss and temperature.