How much electricity does the 24-watt oxygenator use for an hour?

0.024 degrees. It says that it is 24W, and 1000W means electricity once per hour, and that hour is 0.024 kWh. The aerator is a device that drives the working parts through a power source such as a motor or a diesel engine, so that the "oxygen" in the air can be quickly transferred to the aquaculture water.