I bought this as a Christmas present for my wife. She uses it every night as she reads in bed, and she loves it. It is bright but focused enough not to disturb my sleep while she's reading. It spreads a glow over virtually the entire page, requiring minimal adjustment as you read. It is light in weight. And it is highly adjustable. Just clip it to the last pages and back cover of your book, bend it to your heart's content, and read as late as you like. Good product.