Specification Color WhitePower 10WVoltage 5VLight Source LEDLight Color White light warm light natural lightBattery Capacity 4000mAh lithium batteryMaterial ABS Size S Lamp Head Length 25cm 9 8 Base Size 9×13 5cm 3 5×5 3 Height 28cm 11 Size M Lamp Head Length 29cm 11 4 Base Size 12x17cm 4 7×6 7 Height 33cm 13 Features Adopts quality LEDs with multi layer filtering to restore natural light wavelength of 400 500nm soft non flickering and not dazzling Touch the button to change light color white light warm light and natural light Touch and hold the button for stepless dimming from 5 to 100 The lamp head is 180° rotatable and the support rod is 90° adjustable for flexible lighting angle adjustment Built in 4000mAh lithium battery USB Plug in type not included convenient USB chargin With convex desigen on base for holding phone or tabletPackage Included 1 x LED Desk Lamp1 x USB Cable