Touch Sensitive Dimmer: This desk light has 5 brightness levels and 5 lighting modes to choose,providing ideal light levels for working, studying, reading, and relaxing. Flexible Lamp Arm: With 225??flexible arm and 90??base axis, the led lamp can be adjusted to any your preferred angle. You can choose the best lighting angle to accommodate different requirements. Eye Caring Technology: LED desk lamp creates no flicker, no dizzy light, no shadow and soft light, which avoids eye fatigue caused by flickering light and harsh glare effectively, desk lamp is ideal for reading, study for long time. It with USB Charging Port.Auto-OFF timer:30/60 minutes.It can be powered by PC/Power bank/DC 5V adapter. One USB cable included.