VEVOR Photo Studio Light Box, 20" x 20", 3000-5600K Adjustable 3 Color Temperatures Shooting Tent Kit with 160 LED 6 Backdrops Power Adapter Soft Light Cloth, High CRI ≥ 95 for Product Photography

While the product description doesn't mention dimmable LED lights, it does state the light box has 160 premium LED beads with adjustable color temperature ranging from 3000K to 5600K to suit diverse subjects and moods.

Yes, it comes with a carrying case for easy transport. The product description states that it comes with a provided non-woven carry bag.

Yes, the backgrounds are removable and interchangeable. The product description states it comes with 6 detachable, waterproof PP backdrops in different colors that are easy to interchange.