USB Reading Lamp with LED includes the following features : 

• Quality LED lamp beads
• Color temperature 3000-7000k
• Color rendering index 70
• 3 Color modes (cool white, warm white and warm light)
• Operated with push switch
• 10 Brightness levels
• LED Power: 5W
• Power supply: USB interface 5V three-color dimming
• DC 5V USB port
• 360° Rotatable metal holder
• Equipped easy to open clamp, which can clip on your desktop
• Wide application with USB power (such as computer, laptop, wall outlet, socket and power bank)

Material :

• ABS housing

Size closed :

• Bracket - L 50 cm
• LED light - H 50 cm (hose outer diameter 8.0, tube length 38 cm)
• Lamp holder 3.5 inches, outer diameter of 9 cm
• Cable - L of 2 meters