Vibrant and Adjustable Brightness10 dimmable Hollywood style LED bulbs provide soft and natural light for makeup. The LED bulbs have 5 adjustable brightness levels, you can adjust the brightness by switching on and off to meet your different needs. Adjustable LengthYou can adjust the length of the light string by rotating the bulb between each bulb to fit the size of your mirror. USB PoweredThe LED bulbs are powered by a USB cable, you can connect a DC 5V power adapter or a mobile power bank. (The power cord is 2.25 meters long) Smart Memory Dimmer DesignSmart memory means the light will always stay at your preferred brightness level when you last turned it off. Save your favorite lighting settings for next time. Easy InstallationEquipped with strong 3M double-sided tape, it only takes a few minutes to stick the bulbs directly to the mirror, mirror frame, wall or other objects you want to decorate.