Convenient Designed:This inline cord switch has been designed with a US 3-Pronged Piggyback Plug on one end, which is very easy to use, just plug the devices into the back and use the switch to control the on and off. Heavy Duty Switche: This cable switch is rated for 20A 110V which is heavy duty. It can handle high current of 20A. This outdoor electrical switch can be widely used for high power appliances and outdoor appliances.