By d. Sun or twilight module has a gain, since with strong solar radiation d. Shutters automatically goes down. one is not always present. Also for the plants it does not burn indoors. If done before the shutters already down, d. All day dark for plants and furniture. I bought a total of 12 sun or twilight module of Rollotron. It is a highly reliable module and no longer want missen.Ž Since 2 years, I have these things.
