| 摘要 |
The invention relates to a control device for at least one electrochromic window with-means for generating a charging current, to bring the window from a first state into a second state, wherein the window is darker in the second state than in the first state,-means for discharging the window, to bring the window from the second state into the first state, wherein the discharging of the window can be triggered by an emergency signal.
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