1. using brighter LED lights in high quality ( 1 red lamp in the middle and 6 green/white/blue lamps in the edge) 2. tool-free installation, simple and easy to install 3. three modes: red light mode / green/white/blue light mode / rapid mode 4. continuous use for more than 40 hours after installing new batteries 5. availability and convenience in the use of button battery 6. exclusively unique and fashion design with patent