Oh god! Me & booklights!! LOL I have a ton of them. Most of the ones I have clip onto a case not directly to the reader. It took me a while before I found one I really liked that clipped right onto my reader and then I found the Verso.
http://www.lightwedge.com/Welcome/Verso-Clip-Light
I bought mine at Borders but I've seen it at Chapters in Canada and other stores. I like it. I can put it where I want on my reader - top, bottom or sides and move the flex arm as needed. It has some rubber pieces attached that don't scratch my reader. I do find they leave a smudge but that's easily removed with a wipe of a finger or microfibre cloth. When I got mine they only came in black or white but now they come in lots of colors.
I like that it clips right to the reader, it's small, it doesn't scratch, it's bright enough and if I want I can even use it on a paper book.
Enjoy & good luck in your quest to find your perfect booklight.
