Is there a more technical description of how SPD-Smart marine/rail windows control light?


The SPD film layer in SPD-Smart marine/rail products is called a “light valve.” Within the film are millions of microscopic particles. The particles are randomly oriented due to Brownian motion and absorb over 99% of visible light hitting the window. When an electrical voltage is applied, the particles align and light passes through the window. Adjusting the voltage adjusts the orientation of the particles, which regulates the tint of the glazing and the amount of light transmitted.

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