Nutts Lamp for Study Room,table lamps for study room,flexible lamp for study,study lamp for students,study lamp rechargeable,lamps for study room Portable Lamp: this battery operated lamp do not have to plug in when using, cordless and portable to take to outdoor or indoor freely, especially there is limited outlets and power outage happens. And the memory function of this mini table lamp will remember the last usage for both color modes and brightnes