Sleek powerful unearthly and very cool . this futuristic solar car is an exciting way to demonstrate the use of alternative energy. It features an aerodynamic sports car shell design a 4-wheel chassis a powerful 1.4 volt 350 milliampere solar cell (included) and transparent plastic body that can be painted or left clear to display the car s inner mechanical construction. The steer-able front axle rear wheel and adjustable (directional/angle) solar panel mount are all independent parts allowing for separate solar projects. The TRIPLE ACTION SOLAR CAR kit is also convertible: (1) The two-way battery source allows for battery or solar power; (2) the kit design is aerodynamic racer or tractor and; (3) it features a multi-speed transmission. This is a marvelous educational science project for ages 9 and up. Body Size: 14.5 x 22.5 x 4.5cm. Power Source: 1) Solar Cell Battery - Output Power / 1.4V - 350mA (max) 2) Dry Cell Battery - AA x 1 pc (not included) DC motor: Rated voltage / 1.9V; (Rated Load: 4g.cm); Rated Ampere / 145mA.