The total surface area of the film is around 15,000 square feet. By changing the electrical current running through it, it can be set to various modes such as transparent, fogged, and semi-transparent.
總面積達 1 萬 5,000 才（一才約 30 公分 × 30 公分）的通電薄膜，透過電壓控制，可以隨心所欲調整為「透明」、「霧狀」、「半透明」等多層次變化。