Soluc CL512T 4.2W Desk Lamp, Prefer Warm or Cold Light? Offer You All! Powerful Clip Brightness Adjusting LED USB Touch Sensitive Best Desk Table Reading Study Bedside Lamp Light (White) Color Temperature Adjusting: Warm light, cool light, or mixed light ... you can choose more comfortable light color by your moods, or by different seasons and weathers. Clip Everywhere: Stronger spring, curve design and high quality rubber ... it can clip everywhere steadily even clip on a spar Bright Enough: 22 long life LED units, offers sufficient illumination, 700 LUX (12 In) Eye Care - Eye care/eye protection design, 5300-6000k colour temperature, comfortable lighting is essential for preventing eye strain and can also help reduce stress Very Easy to Use: Powered via USB by laptop, PC, adapter, power bank. Suitable for every place, home, office, and dorm.