You want light? Buy this light!
This little device is bright enough for two kids to read under, side-by-side in a dark car.
We clipped it onto the headrest post so that the light would be right between the two rear seats (in a 2001 Saab convertible with black interior).  The kids really enjoyed reading their respective books, and never complained about needing more light.  We ordered another, so that they can each have one to themselves.  The two-level brightness is a nice feature (probably works well with a non-backlit e-reader), and the goose-neck is soft enough to bend with fingers, but firm enough to stay where you want it.  Well built, and uses common batteries.

It would be great if they had a model that is specifically designed to be clipped onto a headrest post in a universal manner, and have a longer goose-neck for that purpose.  However that is just a "wish", and this product works well enough.

Will not interfere with the driver of a car, as the LEDs are very directional.
The only issue may be that the user's eyes need to adjust to the dark when stepping out of the car after using this light for any extended period of time; It's that bright.

Should make out to be a great gift for the bookworm in your life - even if they already have one!
Note: we've only used it a few times, so I can't say much about the durability, but we'll just have to see.
You want light? Buy this light! This little device is bright enough for two kids to read under, side-by-side in a dark car. We clipped it onto the headrest post so that the light would be right between the two rear seats (in a 2001 Saab convertible with black interior). The kids really enjoyed reading their respective books, and never complained about needing more light. We ordered another, so that they can each have one to themselves. The two-level brightness is a nice feature (probably works well with a non-backlit e-reader), and the goose-neck is soft enough to bend with fingers, but firm enough to stay where you want it. Well built, and uses common batteries. It would be great if they had a model that is specifically designed to be clipped onto a headrest post in a universal manner, and have a longer goose-neck for that purpose. However that is just a "wish", and this product works well enough. Will not interfere with the driver of a car, as the LEDs are very directional. The only issue may be that the user's eyes need to adjust to the dark when stepping out of the car after using this light for any extended period of time; It's that bright. Should make out to be a great gift for the bookworm in your life - even if they already have one! Note: we've only used it a few times, so I can't say much about the durability, but we'll just have to see.