3 LIGHTING MODES: You can choose white, warm or natural light according to your preferences or environments. It can be used for 4-7 hours for these 3 levels. MULTIFUNCTIONAL: It is not only a desk lamp, but also a pen holder, universal cell phone holder and emergency power bank. And you can use it comfortably anytime and anywhere wirelessly. POWER BANK: Our lamp has built-in 1200mAh lithium battery rechargeable by USB cable. There is also a USB charging port on the base, which can charge all smartphones, tablets and other USB charging devices. EYE PROTECTION: 24 pcs LED bulbs produce a soft, natural light with no flicker or glare for reading / work / study. It is easy on the eyes, and causes less fatigue. ECONOMICAL & amp; LONG LIFE: Our LED lamp is more energy efficient, and uses 80% less energy than incandescent lighting for the same level of brightness. The lifespan of these LED bulbs can exceed 50,000 hours. Product Parameters Product Parameters USB input: DC5V 500MA-1A USB output: DC5V 500MA-1A Battery capacity: 2000 mAh Working power: 1.3 W Light Color Temperature: White light mode (5000K-6000K) Warm light mode (2800K-3200K) Natural light mode (4000K-5000K) LED brightness: 800LUX Color: White / Blue / Pink What's In The Pack: 1x Desk lamp 1x Manual 1x USB cable External Battery Built-in 1200mAh lithium battery, allows you to charge it by USB cable. Easily charged for your phone or tablets. Pen Container The USB desk lamp has a practical base storage design that targets a variety of stationery such as pens and scissors, making your desk cleaner and saving you more space (Base Diameter: 8.5cm). Cell Phone Stents There is a small groove on the base, the design can be used as a mobile phone holder for watching videos, the semicircular protective sheet is used to block the sliding of the mobile phone. & nbsp; Desk Lamp Protects your Eye It has three different LED lights modes: -Press the switch once: cold (white), -Tap twice: hot (yellow) -Press three times: medium (natural light) -Press four times: Lamp off Long press the power button can enter infinite intelligent dimming.