Abstract: A multi-purpose solar energy operated toy vehicle generally has a plate resembling a ship to be placed on a ship body, while a pair of paddles are connected to the ship body with a motor. A solar cells panel is installed to provide electrical energy by way of photoelectric effect, so that a battery disposed in a housing on the plate can be electrically charged and the motor can be driven to move the vehicle. A pair of front wheels can be rotatably attached on the front portion of the ship body and a pair of rear wheels can replace the paddles to allow the vehicle to run on the ground.

Abstract: A solar water conditioning apparatus for a fishpond which includes a top container and a lower container interconnected by an elongated member. The top container is adapted for exposure to the atmosphere and the bottom container is adapted to be immersed in the fishpond. On the top of the top container is provided a device for converting solar energy into electric power which actuates a motor so as to operate an air pump to introduce fresh air into a hollow column which has its lower portion embedded in a filtering medium of the bottom container and has its upper portion extended outward from the bottom container. The apparatus not only replenishes the amount of oxygen dissolved but also filtrates some polluting material.