Electrically operated water device

An electrically operated water device, comprising:

• a sports carrier;
• a propeller, which is connected to the sports carrier to generate mechanical power for driving the sports carrier to move in a direction;
• a battery unit, which is arranged on the sports carrier for storing and releasing electrical power;
• an electronic speed control, which is arranged on the sports carrier and is electrically connected to the battery unit and the propeller to supply electrical power from the battery unit to the propeller and to control an amount of the mechanical power generated by the propeller;
• and
• a first heat dissipation device, which is coupled to the electronic speed control and comprises a plurality of first fins, wherein the first fins are arranged in a manner of being parallel to and spaced from each other at a fixed interval so that every two adjacent ones of the first fins define therebetween a first heat dissipation trough, the first heat dissipation troughs being in communication with a bottom of the sports carrier, each of the first heat dissipation troughs extending in a direction that corresponds to the moving direction of the sports carrier.