This is a LED Light bar that connects to an Overhead CFS stand. Can be printed on a Creality HI. Once you download the file, You do have to split the one part into 2. There is a space already there you will see. When I uploaded the file. The one piece connected. (you can't miss it). I also gave you 2 Sleeves if you want to make the pieces longer/taller. I did buy a small led light with a USB power, from the Jungle store. So the machine also powers the light. It is a 3.5 feet in size or (927MM) (Printed in PLA).