1. Brightness, free to display. 2. Free installation, plug and play. 3. The double-sided magnetic is firmer and sticky, and will not fall off. 4. USB charging is available. Built-in lithium battery, convenient and practical. 5. Parameters: Light color: pure white/ice blue, warm yellow/ice blue Duration of use: sustainable lighting for about 4 hours Battery capacity: 400 mAh
