1.【 Portable Cordless desk lamp reading light rechargeble big battery 4200mah for home area without power socket, large light board 40pcs led 】: This portable reachargeable battery operated table lamp has large light board (40pcs LED) for reading book study light, kids room,craft, home& offfice work light, Patio,eye caring reading lamp. 2.【Reading Light Two Methods of Power: This lamp can be used by main powered when being charging by usb cable plug in charger or Cordless Table Lamp Powered by Rechargeable large Battery 4200mah 】This desk lamp can be used for any place of home without power socket with rechargeable battery or mian powered with USB cable plug in charger. 3.【 Touch control desk light to change 3 modes of Light Temperature,6 Level Brightness Dimmiable,Memory function】: Cool White Light,Warn White Light,Natural Day White Light, more wonderful this lamp can keep memory of your favorite mode that you selected last time. You do not need to set mode everytime. 4.【Large Light board 40 Led, Eye care led reading book lamp for kids study】: this reading lamp uses 40 pcs eye caring LED, flicker-free,no dizzy light and filter blue light, great eye caring for reading book, study and office working. 5.【Wireless gooseneck small table lamp,nice portable book reading light 】 The cordles lamp can stand on bed,desk,bedside table,bedroom nightstand headboard. ,and built in rechargeable , no need to connect usb cable for power supply!