ZOpid Mini USB and Battery-operated Booklight and Travel-lamp - Portable, Easy Clip on Reading Light for Reading in Bed - Adjustable Brightness Levels - Perfect to use as Camping or Emergency Lamp COMPACT CLIP ON BOOK READING LIGHT - Place on the desk beside the computer keyboard as computer light, or clip onto to Book, Laptop computer or Electronic Reader as a reading light. It has an adjustable head that can rotate up and down to help you fix in the right angle. CORDLESS, FOLDABLE, PORTABLE LAMP - Can be easily folded and packed in backpack,briefcase, and bag.Ideal for travel,dormitory,home,office. Safe Candle light alternate during power outages caused by hurricanes, snow storms, storms and other night time emergencies. EYE-CARE - Super bright CCFL (fluorescent) tube with 2 brightness levels. Glare free, Evenly distributed, Natural spectrum daylight  easy on eyes - Dual axis rotating feature for easy light-focus adjustment POWER UP IN 3 WAYS- Operates with USB cable or 2 x AA batteries (not included) or optional AC adapter (not included). No more wasting money on batteries. can be powered by USB adapter or any USB port electronic device,like computer,power bank.