button switch Color: Can be optional ,Mechanical Life: Over 50000 Cycles Brand Name: SHENTONG,Place of Origin: Zhejiang China button switch Certificates : VDE,ROHS approvalContactResistance20m ,MAXInsulationResistance500VDC,50MDielectricStrength1250VAC,1MINOperatingTemperatureT100ElectricalLife10,000 CyclesOperating Data16A(250VAC,125VAC, 24VDC,12VDC) button switch