220V 10A Float Switch with 4m Cable, Automatic Water Level Controller for Tank Pump This float switch is suitable for controlling pump operation and adjusting liquid level. It can be installed on submersible pumps to control and protect the motor. The float switch is widely used in swimming pools, barrels, tanks, and other containers holding water, oil, acid, or alkali in residential, industrial, and mining applications. The water level regulator is made of high-quality polypropylene, offering good sealing performance to prevent leakage and ensure reliability. Designed based on the principles of gravity and buoyancy, this water level regulator operates automatically, is easy to install, and simple to use. This float switch can directly control motors up to 750W. For motors exceeding 750W, an AC contactor is recommended.