Choosing the right inflatable pool heater will make your water hot in a few minutes. Water heater kit is equipped with Temperature control design, when the water temperature is reached, the power is automatically cut off.Safe & Easy to UseThere is awaterproof indicator on the back of the heater. When the red light is on, itmeans that the work has started.The bottom is with an insulator while the smooth stainless steel guard aims to avoid scalding injures, freely to use.Thicker Copper Wires Than Regular OnesFully submerge the UL-listed heater in a bucket, tub or trough of water and plug into a grounded 120v plugNominal Voltage: 220 VPower: 2000WPacking List:* 1 electric submersible water heaterWarning:Don't use extension cord. don't plug 2 heaters on the same outlet.Make sure the water is always cover the stainless steel guard to avoid dry burning.