This Lamp Is Manufactured From ABS Material With A 360° Bendable Silicone Gooseneck Which Can Adjust Toany Angle, 40 LED Bulbs, 3 Light Modes Of Natural/cool White/warm White, Plus An Easy On/off Switch Control.Ideal For Office, Bedroom, Studying, Reading Working Etc, It Will Provide Flicker-free, Non-glare Light To Helpprevent Eye Fatigue. It Requires 1 X 1200mAh 18650 Lithium Battery (supplied) & Also Comes Complete With AUSB Cable.Approx Size: 160 X 180 X 370mm (fully Extended) LED Bulbs: 0.2W X 40 = 8WPower: DC5V, USB Working Time: 2-3 Hours (approx)Brightness: 2600 Lumens UKCA/CE Approved