The Radio Shack 61-2547 is a compact clip-on booklight that is powered by batteries. There is a plastic clip (with a small rubber pad on the inside) on the front of it. It folds open to reveal the lightbulb (protected by a layer of plastic), which turns on automatically when it is opened. The exterior is white, with small areas of dark gray.

The battery compartment also becomes accessible when the unit is folded open. It runs on two small "AAA" batteries; it is not clear how to easily replace the lightbulb (see the instructions at the 1st link below for assistance). The RS 61-2547 weighs only 2.2 ounces (61g) with the batteries inserted. It was manufactured in China.