I bought this item at my local bookstore for about $20. It did not work well for me at all. It did not give enough light for me. It only lights about 1/2 page at a time and I had to keep moving in order to light pages. I found a much better light at barns and noble for the same price it has 5 or 6 lights across and can be used as a flashlight too, called a hammerhead by mighty bright. It also can be used with adapters. I returned this small extrafkex2! Not sure how it gets such great reviews!