Ultralight desk lamp, USB rechargeable, with 3 levels of brightness adjustable, is portable for both indoor and outdoor use. Its flexible metal hose and 360° rotatable head provide all-around lighting. Adopting LED light source, no UV radiation, no flicker, no dazzle, no harm to your eyes.Features:Ultralight: adopting flame resistant PC shell, ultralight and portable for both indoor and outdoor use.Soft LED White Light: no UV radiation, no flicker, no dazzle, no harm to your eyes.All-around Lighting: 360° rotatable head, and the flexible metal hose can be twisted into different angles.3 Levels of Brightness Switchable: touch the key to adjust with ease.USB Rechargeable: built-in 300mAh battery, easy to charge via any USB ports of computer, power bank, etc.Wide Range of Use: school, study, office, baby room, bedroom, camping, etc.Safe to Use: low voltage, environment friendly, anti-slip bottom.Charging State Indicator: built-in a charging indicator, it will show red light when charging.Specifications:Material: PC shellLamp Color: whiteLight Color: whiteLight Source: 14pcs LED beadsRated Voltage & Current: DC5V, 1APower: 3WExternal Voltage: AC100-220V 50/60Hz (The adapter is not included)Battery: built-in 1 * 5V 300mAh Lithium BatteryCharge Time: 4-6 hoursWork Time(after full charge): 1-3 hours(depends on brightness level)Base Size: 12 * 10cm / 4.7 * 3.9inMax. Height: 40cm / 15.7inLamp Weight: 87g / 3.1ozPackage Size: 16 * 12 * 8cm / 6.3 * 4.7 * 3.1inPackage Weight: 152g / 5.4ozPackage List:1 * LED Lamp1 * USB Cable