Energy Saving & Eye Protection: With USB power supply, LED lamps are about 75% more energy efficient than traditional incandescent bulbs, saving you money. No flicker, no glare, no UV radiation or frequent radiation, eye-protective desk lamp for children. 3 Light Modes & Multi-level Brightness: The eye-protective LED reading lamp is made of 24 LED bulbs, the clip provides cool light, warm light, mixed light and infinite brightness (10%-100%), ideal for learning, crafts or reading. Memory Function: The desk lamp automatically remembers the last used brightness and color mode, and it will restore the last used lighting mode and brightness when turned on again. Clip-on Reading Lamp: A reading lamp with anti-scratch foam that clips perfectly onto desks, computer desks, headboards, drawing boards, etc. The 360° flexible gooseneck allows you to adjust it to any angle. Lamp holder specifications: outer diameter 9 cm, line length 2.0 m. Switch type: push button. LED power: 7 watts (48 lamp beads). Power supply: USB interface 5V three-color dimming