1.ADJUSTABLE 10 BRIGHTNESS & 3 LIGHTING MODES: The book light has 3 lighting colors, warm light , warm–white light and white light . Each lighting mode has 10 brightness adjustable dimming levels. Warm light can creates more warm and peaceful atmosphere, perfect for night sleeping or relaxing while white light is better for working, reading or studying 2.360° FLEXIBLE GOOSENECK DESIGN and NON-SLIP CLIP: Our reading light is equipped with durable flexible gooseneck, which allows you to easily adjust the clip-on light. Metal stable and durable clamp can clip on on desk or stand alone. The clip with the foam pad will protect your furniture from being scratched. Our desk lamp use bright led bulbs, which is 7W that can bring enough light for you.It is the choice for bedroom, reading, working, studying, nail, tattoo, eyebrow make up 3.USB POWERED(ADAPTER NOT INCLUDE): This reading lights for books in bed is portable and has usb plug, which is suitable for laptop/desktop/power bank/usb adapter. Power adapter not included. Our desk light has 24 led beads, having the features like long life, high light efficiency, good heat dissipation and low light failure 4.PRACTICAL & PORTABLE: The clip on light features mini size and compact design to make it carry easily. Sturdy and flexible (360 degrees flexible) goose neck allows you to position your light anywhere you want. Ability to fold and put away for easy storage