. USB computer desk light with one LEDs . Gentle ray and stays bright without frequency change, With low glare to protect the eyes . Easy to use,Plug-and-play . Wired base and flexible metal neck for adjusting at different angles . With on/off switch and battery included . Uses 5V working voltage,safe and reliable with high-energy efficiency . No extemal power source required . Connectible to USB ports on any iBook,PowerBook,Cube,PowerMac,PC,or Notebook . Customized logos are welcome . Ideal as gifts and promotional items . RoHS compliant
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