1[Battery Driven] Reading light has a built in 3.7V 1100mAh battery, no need to plug in to use, cordless to carry with you, especially when sockets are limited and power outages. 2[Eye Protection] Double headed reading light, the top key switch can adjust 3 color temperature and 3 brightness. 18 LEDs, energy saving, bright, no flicker, no dark area, eye protection. 3[Foldable And Flexible] Gooseneck book light has 360 flexibility, allowing you to light where you need it. It also folds into a small lamp so it doesn't take up too much space when traveling. 4[USB Rechargeable] LED book lamp is equipped with a USB charging cable, which can be charged through USB adapters, chargers, desktop computers, and laptops, saving waiting time. 5[Clip Base Design] Clip on reading lamp, suitable for work, study, crafting, display, camping or emergency situations. Used in dormitories, offices, bedrooms, living rooms, children's rooms, bathrooms, etc. Item Type: LED Reading Light Material: ABS Base Part Size: Approx. 8 x 4 x 3.5cm / 3.1 x 1.6 x 1.4in Height (Adjustable): Approx. 25cm/9.8in Weight: Approx. 140g/4.9oz Color: Black Light Source: White Light, Warm Light, Natural Light Built in Battery: Polymer Lithium Battery 3.7V 1100mAh (Included) Number of Lamp Beads: 9LED x 2 Heads Gear Mode: 3 Color Temperature, 3 Brightness Switch Control: Top Button Charging Method: USB 1 xLED Reading Light 1 x USB Cable