As I was about to take a family vacation with small children where we'd be sharing a hotel room, I needed a book light that would allow me to stay up and read after they'd fallen asleep, without disturbing them.  After researching for a few hours, the Xtra Flex LED Book Light seemed to have the features I wanted and had the best overall reviewer ratings, so I ordered one.  Now that I've used it, below are my pro's and con's for this unit.