How to choose polarized LED underground light？

What is the difference between polarized LED underground lights and conventional LED underground lights? When is the right time to use polarized LED underground lights?

The polarized LED underground light is inclined in the specified direction, so in the application of the product, we need to pay attention to whether the reference object needs to specify the light. Different from conventional LED underground lights, the luminous effect of conventional LED underground lights is that the direct light diffuses to both sides.

How does the polarized LED underground light project the beam in the specified direction? This is a lens that adjusts the direction in which the beam is projected. The projection angle of the polarized LED underground light can be adjusted by adjusting the angle of the inner tank or adding a polarizer to adjust the lighting angle.

In the picture below, the LED underground light on the left is a polarized lens, and the right is a traditional direct lens. It is obvious that the beam of the right direct light lens is scattered and uniform. The polarizer on the left shows the projection to one side, the beam can only be shown on the reference object.