Have been using Mighty Bright book lights well over a decade, possibly two: the design and price keep getting better.  They are super bright; the neck is never floppy; the clip stays on tight; the colors are stylish and the finish on them never peels.  I take 2 traveling and use them on the plane and in my hotel room.  Just came back from a safari in Africa where they were indispensable flashlights, too.