How to place the order Step 1: Measure your wall dimension: Height * Width = Square meter 5㎡=54ft² ， 10㎡=108ft² Feature: 1. Using intelligent structural design, you only need to assemble the LED cloud light on the floor first, and finally hang it on the ceiling. The assembly process is very simple and convenient, saving time and effort. We provide clear and detailed instructions, and we also provide nearly all the tools and accessories you need for assembly so that even a beginner can assemble with confidence and ease. 2. APP intelligent control, multiple optional modes, adjustable brightness, speed and direction, 100 fixed modes, easy and fast switching. 3. DIY programming effects, freely match different effects and light colors 4. Follow the sound mode, the dynamic mode jumps according to the music melody, the brightness and sensitivity are adjustable 5. Designed with fireproof cotton and fireproof insulation film to ensure product safety and comply with European and American testing standards