wall washer light

LED wall washers that are widely used are basically 1W high-power LED tubes (each LED tube will have a high-efficiency lens made of PMMA, and its main function is to redistribute the light emitted by the LED tube), showing Single-line arrangement (two-line or multi-line arrangement I classify it as LED flood light), most of the LED tubes of LED wall washer share a radiator, and the light-emitting angle is generally narrow (about 20 degrees), medium ( About 50 degrees), wide (about 120 degrees) three kinds, the farthest effective projection distance of high-power LED wall washer (narrow angle) is 5-20 meters, and its commonly used power is about 9W, 12W, 18W, 24W, 36W and other power forms, and their common dimensions are generally 300, 500, 600, 900, 1000, 1200, 1500mm, etc., and different lengths and power densities can be selected according to actual engineering applications.

Wall washer lamp of the principle:

Due to the relatively large size of the LED wall washer and better heat dissipation, the difficulty in design is also greatly reduced, but in practical applications, the constant current drive is not very well done, and there are many damages. So how to make the wall washer run better, the focus is on control and driving, control and driving, let's learn about LED constant current device together. When it comes to high-power LED products, constant current drive will be mentioned. What is LED constant current drive? No matter the size of the load, the circuit that keeps the LED current unchanged is called LED constant current drive. If a 1W LED is used in the wall washer, it is usually a 350MA LED constant current drive. The purpose of using LED constant current drive is to improve the life of the LED and reduce light decay. The choice of the constant current source is to choose a constant current source with high efficiency as much as possible according to its efficiency and stability, which can reduce energy loss and temperature.

LED wall wash of the control form:

The high-power LED wall washer has two control modes: external control and internal control. The internal control does not require an external controller and can be built in a variety of change modes (up to six), while the external control requires an external control controller to achieve color change. , the applications on the market are mostly external control.