1 many years experience 2 CE. VDE.UL 3 high quality ,fast delivery Float SwitchRated Voltage,Frequency: 250V AC 50Hz/60Hz Rated current: 10 (4)A/16(4)A/16(8)AMax. working temperature: 80degreeProtection Grade: IP68Mechanical endurance more than 100,000 timesElectrical endurance more than 50,000timesLength:2m 3m 5m 10m 20m as customs required float switch(HT-M15-1)