What's the difference between a wall washer and a point light source?

From the perspective of use. The function of point light source is equivalent to fluorescent lamp, or incandescent lamp before. A light source, bright there.

The power of wall washing lamp is generally relatively large, which is equivalent to projection lamp, and the exit angle of light is narrow and adjustable. This is obviously impossible for a point light source.

Although the appearance of the line lamp is similar to that of the wall washing lamp, its power is small and it cannot be cast. One is that the power is not enough, and the other is that the exit angle of light is not designed as a wall washing lamp. It is used for contour lighting, such as buildings or railings and handrails. Therefore, a line light source can also be regarded as a line light source, as opposed to a point light source.