These are handy little lights that are perfect for reading in the car or in bed. I bought two and clipped them over the bed in our RV and enjoyed reading at night without having to put up with the heat and glare of the built in lights that were installed above the bed.  I found I could clip mine directly on my Kindle cover and read lying flat in bed if I so desired. When I turned on my side, the light moved with the Kindle, so the reading was uninterrupted.  It has two little lights and you can choose to use one or both depending on how much light you need.  Good buy!