Adjustable Cable: New design with a perfectly invisible USB cable. The cable can be cleverly hidden within the lamp base by slightly twisting the lamp, allowing for easy adjustment of the distance between lamps (adjustable 9-33 cm). No need to manually wrap the cable around the lamp base. The cables stay neat, keeping your mirror looking stylish and tidy. USB Connection: 14 Hollywood LED bulbs with a USB cable. Connect to a power source via an adapter (not included) or a power bank. Note: The USB makeup light only turns on when connected to power and remembers the last light setting. Adjustable Color & Brightness: USB mirror lights with 14 bulbs and a switch. Click the switch to adjust the light to three different color temperatures (cool white / warm white / neutral). Press the +/- buttons to select from 10 brightness levels (10%-100%) to suit various lighting needs. Easy to Install: Using the included double-sided adhesive tape, you can attach the Hollywood makeup lamp to your mirror in minutes, easily and conveniently. The adjustable cable length allows you to customize the look of your mirror as desired.