Ikea Sunnan Solar LED Light. Has flexible neck, 20 inches tall when fully extended. Has replaceable batteries and weighs only 1.7lbs. The light for brightness needs to be focused to read well, you can bend the neck to the page up close. You could straighten the neck and use it as a general source of light. I tested it in my 12' x 10" bedroom and it took the room out of darkness, and I could see everything in a dim low light. I don't know how long the batteries last e.g. will they keep the light on all night. Though the light does seem to work for a long time. This is a very functional light for anyone who needs a light source without electric. I have used it to place light on eyeglasses that I am photographing. The flexible neck will stay in place once adjusted.

It also looks very nice on a desk. Thank you for looking.