I was in Old Navy this past weekend when I spied booklights for sale. $5!!! I was looking at the Lyra light, but it's $15 and I'd far prefer that $10 went to a book (or two!).
Happily, I can report this light works dandy. I clipped mine to my back cover and I've been enjoying it all night. Let me know if you need the SKU #'s to have an ON near you do an item search.