minimum 0 Report post Posted September 2, 2017 My friend was saying there is this technology that allows us to black-out windows on-demand (something like what our current LRT does), but it is not durable, expensive and needs replacement over time. Is this true? Is there any better solution out there other than curtains? Highly prefer a full black-out solution when I sleep at night. Thanks! Share this post Link to post Share on other sites