How do SPD-Smart marine/rail windows work?


SPD-Smart products are made with SPD film patented by Research Frontiers. Within this film are millions of randomly oriented microscopic particles. When no electrical voltage is present, the particles absorb light and block it from passing through the film. When an electrical voltage is applied, the particles align so that light can pass through. By regulating the voltage, users instantly regulate the amount of light, glare and heat coming through products such as windows.

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