This is hurtling towards a 1-star review across the board. Velux is an established brand and I've installed many of their products but everything about my last order was a disaster. I ordered the solar electric blind kit and it was a mess - it was late, the cords were knotted, wrapped around other components, stuffed in a box with no hope of following the slightly-shit instructions that absolutely don't illustrate how the product fits together. It does so jankily. At head-height as per the videos it's possibly a better experience, but my windows are 3.5 metres in the air and getting the exact angle on both sides is a frikkin nightmare. I got the unit slotted together ahead of time to practice, then followed the instructions to the letter, not that they're comprehensive. It didn't work. took it down, examined the unit and found numerous faults with quality control - plastic and clips misaligned. Basic errors that suggest the spiral of decline has begun. Corrected the manufacturing faults and it failed again - starting to worry about the torx heads and wood integrity at this point. Attempt 3 saw me simulating the process at ground level, where it worked. clip it all back into place on the window and we see another failure. The blinds go down. Not back up again though. I have no idea where to start with the diagnosis of this failure - was it the badly packaged cords? Can it work without cords that don't seem to have a role? I don't really have time for this sh*t. I don't want to become an expert in the field of someone else's poorly designed and executed product. This amateur nonsense cost £250 at least per window. Extremely unimpressive.