Review on 🔦 Deaunbr LED Reading Light with Clip - 48 LEDs, USB Rechargeable, Stepless Adjustable Brightness, Eye Protection - Flexible Table Lamp for Bed Headboard, Home Office - 2600mAh Battery by Michael Hicks

I love this item. It didn't come with a power adapter, but I'm sure any cell phone power adapter will do. It comes with a string. I plug mine into my computer's USB port. It has an internal battery. 3 types of light and multiple brightness settings. Very bright. The clip is large and very strong. I attached it to a glass table and to the top of a wooden chair. Has never shaken. The flexing arm actually stays the way you shape it and doesn't feel cheap at all. I unplugged it and used it wirelessly for about 30 minutes. Has not lost brightness. So far I'm very happy with it.