This is the first book light I've ever purchased.  I am impressed at the amount of light it gives off, and that you can have in on bright or dimmer.  The dimmer light gives off plenty for me to read in the dark.  The clip easily fits on my paper-back book, and I can flip pages by tugging if from under the clip & it doesn't rip the paper.  The adjustable neck is nice...can move to light up entire book, or just one page.  Seems to be a quality product so far.