Usage Tips:Foldable lamp arm Optimal lighting angle: You can rotate the desk lamp arm 225, tilt it 90, and the base axis can be rotated 160. The LED desk lamp can be adjusted to your preferred angle. So you can choose the best lighting angle to meet different needs. EYE SAFETY AND 3 BRIGHTNESS LEVELS: This desk lamp ensures gentle light for your eyes, comfortable light without ghosting to prevent eye fatigue. With 3 adjustable brightness levels, you can adjust the light intensity and create the right atmosphere for different events. USB charging and wireless use: The desk lamp has a built-in 1000mAh battery. a capacity of 1200 mAh which can be used wirelessly for 3 to 12 hours (depending on brightness). In addition to using an outlet, you can also use a power bank or computer to charge it. Touch Control Dimmable LED Desk Lamp With the touch control panel, you can adjust the power, different brightness and lighting modes with one touch, and the lamp turns on. Wide range of applications: the table lamp is suitable for a variety of applications . It can be used as a reading lamp, bedside lamp or table lamp. It is perfect for use at home, in the office, in the bedroom or even while traveling. With its compact size and versatile features, it can provide you with the light you need in different situations. Product size 170*46*40mm