Description MaterialABS+PVC+Aluminum Power: 5W Voltage: DC 5V Rated current: 1A Color temperature: 3000-6000k Light source: LED Lamp beads: 48LED beads Power supply: USB interface Feature 1.Reading lights featured with 3 color temperature: amber / warm light (3000K), warmwhite light (4500K) and white light (6500K). Each lighting mode has 10 brightness dimming levels, available for your different needs. 2.The clip on desk light will be on your previous setting when turning on again to catch your lighting preference. Compared with 24 LED, 48 LED is brighter, this will reduce your fatigue from working or reading. 3.Easy to plug the USB cable into any available USB port (Power Bank/USB Socket/Laptop/Desktop/USB Adapter) to power the LED clamp lamp. Please Note: Only match with the adapter of 5V/ 2A - otherwise will cause damage to the control button and LED reading light. 4.The sturdy metal clip opens up to 2.36 inches,360 adjustable gooseneck & ring light design, easily to direct the light wherever you want for best viewing. 5.Clamp Light Made of 48 LED lighting high quality, no flicker, no dazzle, help those who read and work hours a day to protect eyesight and reduce eye strain, ideal for reading, drawing, work, study. Best Gift for kids & bookworms.