I ordered this from Amazon as it says it is for the Sony PRS-T1 Wi-Fi eBook Reader With Superior Paper Like Display Colour BLACK
, (well any of the Sony Readers really), but when I got it, it turned out to be nothing of the sort, it is in fact a light for a music stand to like up your sheet music as you play, which I found terribly annoying. No where at all did is say it was suitable for a Sony Ebook reader. However, not one to give up without trying, I clamped this onto my eReader and it actually works a treat. I clip it onto the leather cover I have so it doesn't scratch my Sony and it works really well for this. The double LED light can be pressed once for one light and again for the second light, to make it even brighter. The wire is also flexible so it can be moved around to highlight the exact spot I need it to. The clamp itself is adjustable to grip objects of difference thickness's. You can also plug in to a computer's USB via the USB DC and it also works as a power adapter export (DC 4.5 V).
Despite my initial reaction of feeling a little cheated as it wasn't designed for the Sony eBook reader, I am still very happy with this product and have since got a Kindle and used it on that, too. Again, I don't clip it to the actual Kindle, to avoid scratching it, I have a cover of which I attach it to. Just slip in the batteries (3 x AAA) and away you go - reading all night long if you now so desire.