Clouds Pack Included are 2 versions, one in Full-HD resolution 1920×1080 and one in 4k 4096×2304. Of course you can also use the 4K version in 2K (4096×2048), you simply need to crop it in height.
Clouds Pack 4K and Full HD
Alpha Channel: No, Looped Video: No, Frame Rate: 29.97, Resolution: 4096x2304, Video Encoding: Photo JPEG, File Size: 815mb, Number of Clips: 1, Total Clip(s) Length: 0:17, Pace: Time Lapse