.Color Temperature and Brightness Adjustment Switch.Built-in Bi-color LEDs from 2800K to 9900K and dimmable brightness

 ranges from 1%-100% Better than other ring light brands that have to replace external filters..USB POWERED LED LIGHT  The USB ports can be used with multiple devices,such as connect USB charger mobile power and laptop.You will be able to enjoy LED ring light at any time freely...PERFECT LED LIGHT DESIGN The led ring light is made of special energy-saving LED beads, constant current drive and low power loss,low heat output,safety and environmental protection,lightweight and portable.  It can protect the built-in LED beads well.and soften the light. Soft light are widely use in different area which provide your subject more pleasing looking and transit the shadow more smoother. No need.