Car Ventilator drains warm air out of the car, along with the hot air, it also removes unpleasant odors, the fan is charged in the window and in a short time keeps the car at pleasant temperatures, even when you' re not in the car solar panel may not work on dark tinted windows, dimensions: approx. 15 x 6 x 11 cm, power supply: solar, 0.5 W, voltage: 2 V, 120 mA