State of the art AM/FM radio has three different power sources. Powerful solar panel runs radio on sunlight or even a 60-watt light bulb. For night time emergencies radio has an easy to wind hand crank dynamo generator. A few turns of the pull out handle powers the radio for over thirty minutes. Also runs on two AA batteries. Size 6x3x1. High Quality Radio Is Ideal For Everyday Use. Runs on every kind of light!